InfoVis:Wiki - User contributions [en]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2009-01-13T19:31:13Z

UE-InfoVis0809 0827047:

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe3.html Beschreibung der Aufgabe 3]

=== Zu beurteilende Grafik ===
[[Image:Nytimes-sex.jpg]]<br>
Teenage births in rich nations

=== Criticism ===
*Organize the Data
First nation mentioned in the graphic are the United States, before alphabetically ordered list of nations is presented. This could be useful if the most viewers of the graphic come from the US. But since this is only an assumption it might be better to put the data for the United States also to their appropriate position in the alphabetic listing.

*The Role of Text
The legend describing the meaning of read circles stands inside the table. Since this might be considered the explanation for the most important data in the graph it might be better to put this legend on top of the graph such that the viewer immediately sees it. Moreover the Graph has not title at all to explain to the viewer what the graph will be about.

*Subtract unnecessary data ink
Filled circles increase data ink, use unfilled circles instead

*Subtract unnecessary non-data ink
The Shaded rows holding the highest value for each column are not necessary. The red color of the circles focus the viewers attention already to them.

*De-emphasize and regularize the remaining non-data ink
The lines used to split the columns are to strong, use neutral colors as for example a light gray.

== Optimized graphic ==
[[Image:aufgabe3teenbirths.png]]
===Short Description===
This graph shows the number of women becoming mother, before reaching their 20. Birth year among different nations.

[[Image:aufgabe3abortion1996.png]]
===Short Description===
The amount of women in rich nations between 15 and 19 years who had an abortion in 1996.

[[Image:aufgabe3sex1998.png]]
===Short Description===
The amount of women in rich nations reported having sex before they reached an age of 20.

=== Improvements ===
* Split the graph into the three new graphs because the data represents different years and can not immediately be compared. One representing the information about the Teenage birthrates in rich nations in the years 1970 and 1998. Another graph for the Teenage Abortions and a last one for Teen Sex in 1998.
* Change the circles to bars. Put the bars for the different years close together to get a better view on changing values over time. Increase the maximum length of the different bars such that it becomes easier for the user to see the difference between small and large numbers.
* Add a meaningful title for every graph to show the viewer what the graphs are about.
* Put the countries on the X axis and the number of abortions and the other data on the Y axis.
* Add horizontal lines into the graphs such that the values can be compared in an easier way.
* Use less saturated color for the lines splitting the columns (put non-data ink into the background).
* Remove the shading of the rows holding the highest values to reduce the non-data ink.
* Put the United States an the according position in the list such that the countries are ordered alphabetically. Helpful for the viewer of the graph if he is looking for a specific nation because the data is ordered now.
* Create a Legend explaining the meaning of the red bars and the years on the sub-graph.

== References ==

* [Few 1, 2004] Stephen Few, ''Show Me the Numbers: Designing Tables and Graphs to Enlighten''. Analytics Press, 2004, Chapter 7 - General Design for Communication.
* [Few 2, 2004] Stephen Few, ''Elegance Through Simplicity''. United Business Media LLC, October 16. 2004, [http://www.intelligententerprise.com/showArticle.jhtml;jsessionid=N2ATDQWY5VYKSQSNDBGCKHSCJUMEKJVN?articleID=49400920 http://www.intelligententerprise.com]
* [Stanford, 1999] Yoko Mizuno, Josh Sheldon, and Mun-See Tham, ''Tufte Design Principles''. Stanford University, January 26. 1999, [http://ldt.stanford.edu/ldt1999/Students/mizuno/Portfolio/Work/reports/tufte/ed229c-tufte-outline.html http://ldt.stanford.edu]

== Links ==

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe3.html Beschreibung der Aufgabe 3]
* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]
* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]
* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08|Gruppe 08]]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2009-01-13T19:30:02Z

UE-InfoVis0809 0827047: Adding new graphs, description and changing the paragraph "improvements"

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe3.html Beschreibung der Aufgabe 3]

=== Zu beurteilende Grafik ===
[[Image:Nytimes-sex.jpg]]<br>
Teenage births in rich nations

=== Criticism ===
*Organize the Data
First nation mentioned in the graphic are the United States, before alphabetically ordered list of nations is presented. This could be useful if the most viewers of the graphic come from the US. But since this is only an assumption it might be better to put the data for the United States also to their appropriate position in the alphabetic listing.

*The Role of Text
The legend describing the meaning of read circles stands inside the table. Since this might be considered the explanation for the most important data in the graph it might be better to put this legend on top of the graph such that the viewer immediately sees it. Moreover the Graph has not title at all to explain to the viewer what the graph will be about.

*Subtract unnecessary data ink
Filled circles increase data ink, use unfilled circles instead

*Subtract unnecessary non-data ink
The Shaded rows holding the highest value for each column are not necessary. The red color of the circles focus the viewers attention already to them.

*De-emphasize and regularize the remaining non-data ink
The lines used to split the columns are to strong, use neutral colors as for example a light gray.

== Optimized graphic ==
[[Image:aufgabe3teenbirths.png]]
===Short Descriptoion===
This graph shows the number of women becoming mother, before reaching their 20. Birthyear among different nations.

[[Image:aufgabe3abortion1996.png]]
===Short Descriptoion===
The amount of women in rich nations between 15 and 19 years who had an abortion in 1996.

[[Image:aufgabe3sex1998.png]]
===Short Descriptoion===
The amount of women in rich nations reported having sex befor they reached an age of 20.

=== Improvements ===
* Split the graph into the three new graphs because the data represents different years and can not immediately be compared. One representing the information about the Teenage birthrates in rich nations in the years 1970 and 1998. Another graph for the Teenage Abortions and a last one for Teen Sex in 1998.
* Change the circles to bars. Put the bars for the different years close together to get a better view on changing values over time. Increase the maximum length of the different bars such that it becomes easier for the user to see the difference between small and large numbers.
* Add a meaningful title for every graph to show the viewer what the graphs are about.
* Put the countries on the X axis and the number of abortions and the other data on the Y axis.
* Add horizontal lines into the graphs such that the values can be compared in an easier way.
* Use less saturated color for the lines splitting the columns (put non-data ink into the background).
* Remove the shading of the rows holding the highest values to reduce the non-data ink.
* Put the United States an the according position in the list such that the countries are ordered alphabetically. Helpful for the viewer of the graph if he is looking for a specific nation because the data is ordered now.
* Create a Legend explaining the meaning of the red bars and the years on the sub-graph.

== References ==

* [Few 1, 2004] Stephen Few, ''Show Me the Numbers: Designing Tables and Graphs to Enlighten''. Analytics Press, 2004, Chapter 7 - General Design for Communication.
* [Few 2, 2004] Stephen Few, ''Elegance Through Simplicity''. United Business Media LLC, October 16. 2004, [http://www.intelligententerprise.com/showArticle.jhtml;jsessionid=N2ATDQWY5VYKSQSNDBGCKHSCJUMEKJVN?articleID=49400920 http://www.intelligententerprise.com]
* [Stanford, 1999] Yoko Mizuno, Josh Sheldon, and Mun-See Tham, ''Tufte Design Principles''. Stanford University, January 26. 1999, [http://ldt.stanford.edu/ldt1999/Students/mizuno/Portfolio/Work/reports/tufte/ed229c-tufte-outline.html http://ldt.stanford.edu]

== Links ==

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe3.html Beschreibung der Aufgabe 3]
* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]
* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]
* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08|Gruppe 08]]

File:Aufgabe3sex1998.png

2009-01-13T19:07:57Z

UE-InfoVis0809 0827047: New page: == Summary == == Copyright status == == Source ==

== Summary ==

== Copyright status ==

== Source ==

File:Aufgabe3abortion1996.png

2009-01-13T19:07:37Z

UE-InfoVis0809 0827047: New page: == Summary == == Copyright status == == Source ==

== Summary ==

== Copyright status ==

== Source ==

File:Aufgabe3teenbirths.png

2009-01-13T19:07:14Z

UE-InfoVis0809 0827047: New page: == Summary == == Copyright status == == Source ==

== Summary ==

== Copyright status ==

== Source ==

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-09T09:40:05Z

UE-InfoVis0809 0827047:

== Aufgabenstellung ==
[http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe3.html Beschreibung der Aufgabe 3]

=== Zu beurteilende Grafik ===
[[Image:Nytimes-sex.jpg]]<br>
Teenage births in rich nations

=== Criticism ===
*Organize the Data
First nation mentioned in the graphic are the United States, before alphabetically ordered list of nations is presented. This could be useful if the most viewers of the graphic come from the US. But since this is only an assumption it might be better to put the data for the United States also to their appropriate position in the alphabetic listing.

*The Role of Text
The legend describing the meaning of read circles stands inside the table. Since this might be considered the explanation for the most important data in the graph it might be better to put this legend on top of the graph such that the viewer immediately sees it. Moreover the Graph has not title at all to explain to the viewer what the graph will be about.

*Subtract unnecessary data ink
Filled circles increase data ink, use unfilled circles instead

*Subtract unnecessary non-data ink
The Shaded rows holding the highest value for each column are not necessary. The red color of the circles focus the viewers attention already to them.

*De-emphasize and regularize the remaining non-data ink
The lines used to split the columns are to strong, use neutral colors as for example a light gray.

== Optimized graphic ==
[[Image:graphaufgabe3.png]]

=== Improvements ===
* Put the legend for the maximum values on top of the Graph
* Add a meaningful title
* Change the circles to bars. Put the bars for the different years close together to get a better view on changing values over time.
* Use less saturated color for the lines splitting the columns (put non-data ink into the background)
* Remove the shading of the rows holding the highest values to reduce the non-data ink
* Put the United States an the according position in the list such that the countries are ordered alphabetically

== References ==

* [Few 1, 2004] Stephen Few, ''Show Me the Numbers: Designing Tables and Graphs to Enlighten''. Analytics Press, 2004, Chapter 7 - General Design for Communication.
* [Few 2, 2004] Stephen Few, ''Elegance Through Simplicity''. United Business Media LLC, October 16. 2004, [http://www.intelligententerprise.com/showArticle.jhtml;jsessionid=N2ATDQWY5VYKSQSNDBGCKHSCJUMEKJVN?articleID=49400920 http://www.intelligententerprise.com]
* [Stanford, 1999] Yoko Mizuno, Josh Sheldon, and Mun-See Tham, ''Tufte Design Principles''. Stanford University, January 26. 1999, [http://ldt.stanford.edu/ldt1999/Students/mizuno/Portfolio/Work/reports/tufte/ed229c-tufte-outline.html http://ldt.stanford.edu]

== Links ==

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe3.html Beschreibung der Aufgabe 3]
* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]
* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]
* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08|Gruppe 08]]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-08T21:32:56Z

UE-InfoVis0809 0827047: Optimized graphic

File:Graphaufgabe3.png

2008-12-08T21:31:39Z

UE-InfoVis0809 0827047: New page: == Summary == == Copyright status == == Source ==

== Summary ==

== Copyright status ==

== Source ==

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-08T19:22:34Z

UE-InfoVis0809 0827047: Adding Improvements

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-08T14:18:36Z

UE-InfoVis0809 0827047: Changing Criticism

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-08T11:59:57Z

UE-InfoVis0809 0827047:

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-08T11:59:13Z

UE-InfoVis0809 0827047: Inserting first version of the new graphic

File:Graphikaufgabe3.jpg

2008-12-08T11:57:45Z

UE-InfoVis0809 0827047: New page: == Summary == == Copyright status == == Source ==

== Summary ==

== Copyright status ==

== Source ==

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-08T10:11:20Z

UE-InfoVis0809 0827047:

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-02T11:16:32Z

UE-InfoVis0809 0827047:

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 3

2008-12-02T11:05:53Z

UE-InfoVis0809 0827047: Adding criticism and referneces

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 2

2008-11-29T11:14:54Z

UE-InfoVis0809 0827047: update optimized table

== Original Table ==

[[Image:Table3_wilmarth.gif]]

=== Criticism ===

* Grid makes the data harder to read when scaning throug the colums and rows because it breaks up the data.
* The Border around the table is not needed since there is enough space around the table
* Rows and columns in the body stand to close togehter
* Text in the table is not aligned properly. Numbers should be aligned to the right because this makes them easier to read. The other Text not holding numbers such as the columns holding "Analyte" and "Units" should be aligned to the left
* Numbers are not in a consistent form. They have a different amount of digits after the decimal point. Other numbers are expressed in an exponential form
* The percent sign is missing for every percentage value

== Optimized Table ==

[[Image:Wilmarth08_new3.png]]

=== Improvements ===

* Remove the grid. Use only a line to separate the header from the body
* Remove the border around the table
* Increase space between Rows and Columns
* Use categorical subdevision for TK50-HTK
* Separating the rows by shading them with a light gray.
* Add a point after three whole number digits
* Bring the numbers in a unique form. All numbers have the same amount of digits after the decimal point
* Align all numbers to the right and the other text to the left
* Add a percent sign to the right of every percentage value
* Write µg instead of microg

== References ==

* [Few 2004] Stephen Few, ''Show Me the Numbers: Designing Tables and Graphs to Enlighten''. Analytics Press, 2004, Chapter 8 - Table Design.

== Links ==

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe2.html Beschreibung der Aufgabe 2]
* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]
* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]
* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08|Gruppe 08]]

File:Wilmarth08 new3.png

2008-11-29T11:13:53Z

UE-InfoVis0809 0827047: New page: == Summary == == Copyright status == == Source ==

== Summary ==

== Copyright status ==

== Source ==

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 2

2008-11-20T17:31:10Z

UE-InfoVis0809 0827047: Delete * Spalten und Zeilen tauschen? * Units ans Ende der Tabelle? * statt dpm/g lieber dpm/kg?

== Original Table ==

[[Image:Table3_wilmarth.gif]]

=== Criticism ===

* Grid makes the data harder to read when scaning throug the colums and rows because it breaks up the data.
* The Border around the table is not needed since there is enough space around the table
* Rows and columns in the body stand to close togehter
* Text in the table is not aligned properly. Numbers should be aligned to the right because this makes them easier to read. The other Text not holding numbers such as the columns holding "Analyte" and "Units" should be aligned to the left
* Numbers are not in a consistent form. They have a different amount of digits after the decimal point. Other numbers are expressed in an exponential form
* The percent sign is missing for every percentage value

== Optimized Table ==

[[Image:Wilmarth08_new2.jpg]]

=== Improvements ===

* Remove the grid. Use only a line to separate the header from the body
* Remove the border around the table
* Increase space between Rows and Columns
* Use categorical subdevision for TK50-HTK
* Separating the rows by shading them with a light gray.
* Add a point after three whole number digits
* Bring the numbers in a unique form. All numbers have the same amount of digits after the decimal point
* Align all numbers to the right and the other text to the left
* Add a percent sign to the right of every percentage value
* Write µg instead of microg

== Links ==

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe2.html Beschreibung der Aufgabe 2]
* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]
* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]
* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08|Gruppe 08]]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 2

2008-11-19T11:58:33Z

UE-InfoVis0809 0827047: Insertig Improvements and Criticism, changing optimized table

== Original Table ==

[[Image:Table3_wilmarth.gif]]

=== Criticism ===

* Grid makes the data harder to read when scaning throug the colums and rows because it breaks up the data.
* The Border around the table is not needed since there is enough space around the table
* Rows and columns in the body stand to close togehter
* Text in the table is not aligned properly. Numbers should be aligned to the right because this makes them easier to read. The other Text not holding numbers such as the columns holding "Analyte" and "Units" should be aligned to the left
* Numbers are not in a consistent form. They have a different amount of digits after the decimal point. Other numbers are expressed in an exponential form
* The percent sign is missing for every percentage value
* Spalten und Zeilen tauschen?
* Units ans Ende der Tabelle?
* statt dpm/g lieber dpm/kg?

== Optimized Table ==

[[Image:Wilmarth08_new2.jpg]]

=== Improvements ===

* Remove the grid. Use only a line to separate the header from the body
* Remove the border around the table
* Increase space between Rows and Columns
* Use categorical subdevision for TK50-HTK
* Separating the rows by shading them with a light gray.
* Add a point after three whole number digits
* Bring the numbers in a unique form. All numbers have the same amount of digits after the decimal point
* Align all numbers to the right and the other text to the left
* Add a percent sign to the right of every percentage value
* Write µg instead of microg

== Links ==

* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/infovis_ue_aufgabe2.html Beschreibung der Aufgabe 2]
* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09|InfoVis:Wiki UE Homepage]]
* [http://ieg.ifs.tuwien.ac.at/~gschwand/teaching/infovis_ue_ws08/ UE InfoVis]
* [[Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08|Gruppe 08]]

File:Wilmarth08 new2.jpg

2008-11-19T11:33:26Z

UE-InfoVis0809 0827047: New page: == Summary == == Copyright status == == Source ==

== Summary ==

== Copyright status ==

== Source ==

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 1 - Contour Plot/Map

2008-11-16T20:02:57Z

UE-InfoVis0809 0827047: Adding Title for [SAS, 2008]

==Definitions==

{{Quotation|A '''contour plot''' (also '''contour map''') is a graphic representation of the relationships among three numeric variables in two dimensions. Two variables are for X and Y axes, and a third variable Z is for contour levels. The contour levels are plotted as curves (also lines); the area between curves can be color coded to indicate interpolated values.|[SAS, 2008]}}

{{Quotation|A '''contour line''' (also '''isoline''') for a function of two variables is a curve connecting points where the function has a same particular value. ... The gradient of the function is always perpendicular to the contour lines. When the lines are close together the length of the gradient is large: the variation is steep. If adjacent contour lines are of the same line width, the direction of the gradient cannot be determined from the contour lines alone.|[AbAs, 2008]}}

----

==Properties of contour lines==

[[image:Contour_map.png|thumb|A contour map with contour lines.]]

* Isolines have to be closed. They can only end at the map edge. Therefore they must be somewhere outside of the viewing area to connect itself, but then again they are closed.
* They may not touch nor cross nor run into each other. If there is no possibility to avoid this cause of reasons of scale or pressure, they should interrupt at such a bottleneck.
* The continuity of the values shown by the presence of isolines is in no way modified or restricted. A contour line never shows an edge, a step or a bend.
* The gap value depends on the distance from the isolines: The closer the isolines are the more rapid the continuum changes.
* Between any pair of points, whose imaginary line doesn't lie parallel to the neighboring isolines, there is a difference of the represented value, whether between the two points runs a contour line or not.
* At the same gap value, widely spaced points, between which no isoline runs, have a greater value difference than closely spaced points, between which a Contour line is located.
* The locations of the lines are actually random in the sense that they depend on the attributed values.

----

==Applications==

[[image:Weather_map.jpg|thumb|The map shows the analysis of the weather condition. The isobars represent lines of constant barometric pressure.]]
[[Image:Bathymetry.jpg|thumb|Ocean bottom topography, also known as bathymetry, is the measurement of the depth of large bodies of water.]]
[[Image:Topographic_map.jpg|thumb|Topographic maps are maps that show topography, or land contours, by means of contour lines. Contour lines are curves that connect contiguous points of the same altitude.]]

Data that can be displayed by a contour map is found in many applications. Any piecewise continuous, single-valued function of two continuous independent variables can be represented in the form of a contour map.

===Meteorology===

Numerous weather stations measure different meteorological properties. The collected data just represent the local situation at the weather stations. Therefore contour lines are drawn to best approximate the locations of exact values, based on the scattered information points available.

Isolines in meteorological maps:
* '''Barometric pressure''' (isobar)
* '''Temperature''' (isotherm)
* '''Precipitation and air moisture''' (isohyet and isohume)
* '''Wind speed and direction''' (isotach and isogon)
* '''Freeze and thaw''' (isotac)

=== Physical geography and oceanography ===

* '''Elevation and depth''' (topographic maps, bathymetric maps)
* '''Magnetism'''
* '''Oceanography'''

=== Environmental science ===

* '''Social sciences'''
* '''Thermodynamics, engineering, and other sciences'''
* '''Other phenomena'''

----

==References==

* [SAS, 2008] Contour Plot, SAS. Retrieved at: October 29, 2008. [http://support.sas.com/onlinedoc/913/getDoc/de/sgug.hlp/ctr_index.htm http://support.sas.com/onlinedoc/913/getDoc/de/sgug.hlp/ctr_index.htm]
* [AbAs, 2008] Absolute Astronomy. Retrieved at: October 31, 2008. [http://www.absoluteastronomy.com/ http://www.absoluteastronomy.com/]
* [Wakonigg, 2001] Herwig Wakonigg, Struktur und Wesen von Isolinienkarten. Institut für Geographie und Raumforschung. Created at: October 1, 2001. Retrieved at: November 6, 2008. [http://www.uni-graz.at/geowww/geo/geoweb_magazin_artikel_detail.php?recordID=54 http://www.uni-graz.at/geowww/geo/geoweb_magazin_artikel_detail.php?recordID=54]
* [Morse, 1969] Stephen P. Morse. Concepts of Use in Contour Map Processing. ''Communications of the ACM'', 12(3):147-152, March 1969
* [Wikipedia, 2008] Contour line, Wikipedia. Retrieved at: October 30, 2008. [http://en.wikipedia.org/wiki/Contour_map http://en.wikipedia.org/wiki/Contour_map]

----

==External links==

* [http://www.bev.gv.at/ Bundesamt für Eich- und Vermessungswesen (Federal Office for Meteorology and Surveying of Austria)]
* [http://www.austrianmap.at/ Austrianmap]
* [http://www.zamg.ac.at/ Zentralanstalt für Meteorologie und Geodynamik]

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 1 - Chart

2008-11-13T16:14:34Z

UE-InfoVis0809 0827047:

==Definitions==

{{Quotation|A '''chart''' is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart. A chart can represent tabular numeric data, functions or some kinds of qualitative structures..|[Wikipedia]}}

----

==Overview==
The term chart can stand for several different things. A chart might be a diagram, maps that hold additional information depending on their usage or music charts that represent the popularity of different tracks.
Charts are used to provide people a fast and better understanding of large amount of data. Therefore they depend strong on graphical elements and hold only a limited amount of text for example a title to give a quick idea what the chart is about. Examples could be to show the population of a country over the last years. Using for example a line chart, an increase or a decrease of the population is easier to see then comparing plane numbers only.

----

==Types of charts==
Depending on the available data and the information somebody is willing to provide different kinds of charts exist since different information can be visualized better in one type of chart than another. Some of the most common are listed below and explained in more detail.
===Bar chart===
[[image:barchart.png|thumb|Sample of a bar chart.]]
Bar Charts are composed out of several bars usually with equal width while the hight expresses the value. The bars can be horizontal or vertical oriented. Usually they are used to compare two ore more different values. A bar charts can be used for example when the data can be counted. For example how many people use the bus, the train or the car to go to work. Another example could be to show how many buyers of an iMac previously used a Windows PC, a Macintosh or used no PC before.
===Histogram===
Same as the bar chart the histogram uses bars to display the data. Different to a bar chart, on a histogram the bars are ordered only horizontal. A histogram is used to visualize continuous data, displaying the shape of a distribution, while the bar chart visualizes discrete data. For every point in the distribution a value exists. The points might be grouped into class intervals with an according frequency. The Result are bars with different hights depending on the frequency and the width of the bars depending on the size of the intervals.
===Line chart===
[[image:linechart.png|thumb|Sample of a line chart.]]
A Line Chart holds several related values. This values are connected with each other from left to right to show a tendency of the given data. As an example of usage could be the speed of a given body over some time.
===Pie chart===
[[image:piechart.png|thumb|Distribution of different Operating Systems on Desktop PCs displayed as a pie chart.]]
A Pie chart is drawn in form of a circle. The different data values are encoded as segments. The relative values are used to define the arc length of the segments. A pie chart can be used if it should visualize the value of one segment compared to the rest of the chart. Comparing different segments which each other might be difficult for humans. Also displaying increase or decrease of values other charts can be a better choice.
===Gantt chart===
A Gantt chart is used for scheduling an amount of tasks. The horizontal axis is used to represent the time. The vertical axis holds the different tasks. Inside the plane horizontal bars are used to display the tasks where the length of the bar determines the time needed to fulfill the task. Displaying the dependency of the different tasks can only be done in a limited way using a Gantt chart. Other Charts as for example a PERT chart are more suitable for such a task.
===Other charts===
*Timeline chart
* Organizational chart
* Tree chart
* Flow chart
* Bubble chart
* Radar chart

----

==References==

* [Wikipedia 1, 2008] Chart. Wikipedia. Retrieved at: November 02, 2008. [http://en.wikipedia.org/wiki/Chart http://en.wikipedia.org/wiki/Chart]
* [Wikipedia 2, 2008] Bar chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Bar_chart http://en.wikipedia.org/wiki/Bar_chart]
* [Skymark 1, 2008] Bar charts are easy to use, and easy to abuse. Know the difference. SkyMark Corporation. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/bar_charts.asp http://www.skymark.com/resources]
* [Openlearn 1, 2008] More working with charts, graphs and tables 5.1 Bar charts. OpenLearn. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210663&direct=1 http://openlearn.open.ac.uk]
* [Connexions 1, 2008] David Lane. Graphing Qualitative Variables. Rice University. Retrieved at: November 13, 2008.[http://cnx.org/content/m10927/latest/ http://cnx.org/]
* [Skymark 2, 2008] Histograms: Snapshots of Process Variation. SkyMark Corporation. Retrieved at: November 03, 2008.[http://www.skymark.com/resources/tools/histograms.asp http://www.skymark.com]
* [Openlearn 2, 2008] More working with charts, graphs and tables 5.3 Histograms. OpenLearn. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210667&direct=1 http://openlearn.open.ac.uk]
* [Connexions 2, 2008]David Lane. Histograms. Rice University. Retrieved at: November 13, 2008.[http://cnx.org/content/m10160/latest/ http://cnx.org/]
* [Wikipedia 3, 2008] Pie chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Pie_chart http://en.wikipedia.org/wiki/Pie_chart]
* [Skymark 3, 2008] Pie charts: Still useful after all these years. SkyMark Corporation. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/pie_charts.asp http://www.skymark.com]
* [Openlearn 3, 2008] More working with charts, graphs and tables 6.1 What is a pie chart? OpenLearn. Retrieved at: November 03, 2008. [http://openlearn.open.ac.uk/mod/resource/view.php?id=210669&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 4, 2008] Line chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Line_chart http://en.wikipedia.org/wiki/Line_chart]
* [SearchSoftwareQuality, 2008] What is Gantt chart? - a definition from Whatis.com. TechTarget. Retrieved at: November 03, 2008. [http://searchsoftwarequality.techtarget.com/sDefinition/0,,sid92_gci331397,00.html http://searchsoftwarequality.techtarget.com]

----

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 1 - Chart

2008-11-13T16:10:44Z

UE-InfoVis0809 0827047: changing reference

==Definitions==

{{Quotation|A '''chart''' is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart. A chart can represent tabular numeric data, functions or some kinds of qualitative structures..|[Wikipedia]}}

----

==Overview==
The term chart can stand for several different things. A chart might be a diagram, maps that hold additional information depending on their usage or music charts that represent the popularity of different tracks.
Charts are used to provide people a fast and better understanding of large amount of data. Therefore they depend strong on graphical elements and hold only a limited amount of text for example a title to give a quick idea what the chart is about. Examples could be to show the population of a country over the last years. Using for example a line chart, an increase or a decrease of the population is easier to see then comparing plane numbers only.

----

==Types of charts==
Depending on the available data and the information somebody is willing to provide different kinds of charts exist since different information can be visualized better in one type of chart than another. Some of the most common are listed below and explained in more detail.
===Bar chart===
[[image:barchart.png|thumb|Sample of a bar chart.]]
Bar Charts are composed out of several bars usually with equal width while the hight expresses the value. The bars can be horizontal or vertical oriented. Usually they are used to compare two ore more different values. A bar charts can be used for example when the data can be counted. For example how many people use the bus, the train or the car to go to work. Another example could be to show how many buyers of an iMac previously used a Windows PC, a Macintosh or used no PC before.
===Histogram===
Same as the bar chart the histogram uses bars to display the data. Different to a bar chart, on a histogram the bars are ordered only horizontal. A histogram is used to visualize continuous data, displaying the shape of a distribution, while the bar chart visualizes discrete data. For every point in the istribution a value exists. The points might be grouped into class intervals with an according frequency. The Result are bars with different hights depending on the frequency and the width of the bars depending on the size of the intervals.
data.
===Line chart===
[[image:linechart.png|thumb|Sample of a line chart.]]
A Line Chart holds several related values. This values are connected with each other from left to right to show a tendency of the given data. As an example of usage could be the speed of a given body over some time.
===Pie chart===
[[image:piechart.png|thumb|Distribution of different Operating Systems on Desktop PCs displayed as a pie chart.]]
A Pie chart is drawn in form of a circle. The different data values are encoded as segments. The relative values are used to define the arc length of the segments. A pie chart can be used if it should visualize the value of one segment compared to the rest of the chart. Comparing different segments which each other might be difficult for humans. Also displaying increase or decrease of values other charts can be a better choice.
===Gantt chart===
A Gantt chart is used for scheduling an amount of tasks. The horizontal axis is used to represent the time. The vertical axis holds the different tasks. Inside the plane horizontal bars are used to display the tasks where the length of the bar determines the time needed to fulfill the task. Displaying the dependency of the different tasks can only be done in a limited way using a Gantt chart. Other Charts as for example a PERT chart are more suitable for such a task.
===Other charts===
*Timeline chart
* Organizational chart
* Tree chart
* Flow chart
* Bubble chart
* Radar chart

----

==References==

* [Wikipedia 1, 2008] Chart. Wikipedia. Retrieved at: November 02, 2008. [http://en.wikipedia.org/wiki/Chart http://en.wikipedia.org/wiki/Chart]
* [Wikipedia 2, 2008] Bar chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Bar_chart http://en.wikipedia.org/wiki/Bar_chart]
* [Skymark 1, 2008] Bar charts are easy to use, and easy to abuse. Know the difference. SkyMark Corporation. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/bar_charts.asp http://www.skymark.com/resources]
* [Openlearn 1, 2008] More working with charts, graphs and tables 5.1 Bar charts. OpenLearn. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210663&direct=1 http://openlearn.open.ac.uk]
* [Connexions 1, 2008] David Lane. Graphing Qualitative Variables. Rice University. Retrieved at: November 13, 2008.[http://cnx.org/content/m10927/latest/ http://cnx.org/]
* [Skymark 2, 2008] Histograms: Snapshots of Process Variation. SkyMark Corporation. Retrieved at: November 03, 2008.[http://www.skymark.com/resources/tools/histograms.asp http://www.skymark.com]
* [Openlearn 2, 2008] More working with charts, graphs and tables 5.3 Histograms. OpenLearn. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210667&direct=1 http://openlearn.open.ac.uk]
* [Connexions 2, 2008]David Lane. Histograms. Rice University. Retrieved at: November 13, 2008.[http://cnx.org/content/m10160/latest/ http://cnx.org/]
* [Wikipedia 3, 2008] Pie chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Pie_chart http://en.wikipedia.org/wiki/Pie_chart]
* [Skymark 3, 2008] Pie charts: Still useful after all these years. SkyMark Corporation. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/pie_charts.asp http://www.skymark.com]
* [Openlearn 3, 2008] More working with charts, graphs and tables 6.1 What is a pie chart? OpenLearn. Retrieved at: November 03, 2008. [http://openlearn.open.ac.uk/mod/resource/view.php?id=210669&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 4, 2008] Line chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Line_chart http://en.wikipedia.org/wiki/Line_chart]
* [SearchSoftwareQuality, 2008] What is Gantt chart? - a definition from Whatis.com. TechTarget. Retrieved at: November 03, 2008. [http://searchsoftwarequality.techtarget.com/sDefinition/0,,sid92_gci331397,00.html http://searchsoftwarequality.techtarget.com]

----

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 1 - Chart

2008-11-13T16:09:43Z

UE-InfoVis0809 0827047: Updating text for bar chart, histogram, gantt chart and changing refernences

==Definitions==

{{Quotation|A '''chart''' is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart. A chart can represent tabular numeric data, functions or some kinds of qualitative structures..|[Wikipedia]}}

----

==Overview==
The term chart can stand for several different things. A chart might be a diagram, maps that hold additional information depending on their usage or music charts that represent the popularity of different tracks.
Charts are used to provide people a fast and better understanding of large amount of data. Therefore they depend strong on graphical elements and hold only a limited amount of text for example a title to give a quick idea what the chart is about. Examples could be to show the population of a country over the last years. Using for example a line chart, an increase or a decrease of the population is easier to see then comparing plane numbers only.

----

==Types of charts==
Depending on the available data and the information somebody is willing to provide different kinds of charts exist since different information can be visualized better in one type of chart than another. Some of the most common are listed below and explained in more detail.
===Bar chart===
[[image:barchart.png|thumb|Sample of a bar chart.]]
Bar Charts are composed out of several bars usually with equal width while the hight expresses the value. The bars can be horizontal or vertical oriented. Usually they are used to compare two ore more different values. A bar charts can be used for example when the data can be counted. For example how many people use the bus, the train or the car to go to work. Another example could be to show how many buyers of an iMac previously used a Windows PC, a Macintosh or used no PC before.
===Histogram===
Same as the bar chart the histogram uses bars to display the data. Different to a bar chart, on a histogram the bars are ordered only horizontal. A histogram is used to visualize continuous data, displaying the shape of a distribution, while the bar chart visualizes discrete data. For every point in the istribution a value exists. The points might be grouped into class intervals with an according frequency. The Result are bars with different hights depending on the frequency and the width of the bars depending on the size of the intervals.
data.
===Line chart===
[[image:linechart.png|thumb|Sample of a line chart.]]
A Line Chart holds several related values. This values are connected with each other from left to right to show a tendency of the given data. As an example of usage could be the speed of a given body over some time.
===Pie chart===
[[image:piechart.png|thumb|Distribution of different Operating Systems on Desktop PCs displayed as a pie chart.]]
A Pie chart is drawn in form of a circle. The different data values are encoded as segments. The relative values are used to define the arc length of the segments. A pie chart can be used if it should visualize the value of one segment compared to the rest of the chart. Comparing different segments which each other might be difficult for humans. Also displaying increase or decrease of values other charts can be a better choice.
===Gantt chart===
A Gantt chart is used for scheduling an amount of tasks. The horizontal axis is used to represent the time. The vertical axis holds the different tasks. Inside the plane horizontal bars are used to display the tasks where the length of the bar determines the time needed to fulfill the task. Displaying the dependency of the different tasks can only be done in a limited way using a Gantt chart. Other Charts as for example a PERT chart are more suitable for such a task.
===Other charts===
*Timeline chart
* Organizational chart
* Tree chart
* Flow chart
* Bubble chart
* Radar chart

----

==References==

* [Wikipedia 1, 2008] Chart. Wikipedia. Retrieved at: November 02, 2008. [http://en.wikipedia.org/wiki/Chart http://en.wikipedia.org/wiki/Chart]
* [Wikipedia 2, 2008] Bar chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Bar_chart http://en.wikipedia.org/wiki/Bar_chart]
* [Skymark 1, 2008] Bar charts are easy to use, and easy to abuse. Know the difference. SkyMark Corporation. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/bar_charts.asp http://www.skymark.com/resources]
* [Openlearn 1, 2008] More working with charts, graphs and tables 5.1 Bar charts. OpenLearn. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210663&direct=1 http://openlearn.open.ac.uk]
* [Connexions 1, 2008] David Lane. Graphing Qualitative Variables. Rice University. Retrieved at: November 13, 2008.[http://cnx.org/content/m10927/latest/ http://cnx.org/]
* [Skymark 2, 2008] Histograms: Snapshots of Process Variation. SkyMark Corporation. Retrieved at: November 03, 2008.[http://www.skymark.com/resources/tools/histograms.asp http://www.skymark.com]
* [Openlearn 2, 2008] More working with charts, graphs and tables 5.3 Histograms. OpenLearn. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210667&direct=1 http://openlearn.open.ac.uk]
* [Connexions 2, 2008]David Lane. Histograms. Rice University. Retrieved at: November 13, 2008.[http://cnx.org/content/m10160/latest/ http://cnx.org/]
* [Wikipedia 3, 2008] Pie chart. Wikipedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Pie_chart http://en.wikipedia.org/wiki/Pie_chart]
* [Skymark 3, 2008] Pie charts: Still useful after all these years. SkyMark Corporation. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/pie_charts.asp http://www.skymark.com]
* [Openlearn 3, 2008] More working with charts, graphs and tables 6.1 What is a pie chart? OpenLearn. Retrieved at: November 03, 2008. [http://openlearn.open.ac.uk/mod/resource/view.php?id=210669&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 4, 2008] Line chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Line_chart http://en.wikipedia.org/wiki/Line_chart]
* [SearchSoftwareQuality, 2008] What is Gantt chart? - a definition from Whatis.com. TechTarget. Retrieved at: November 03, 2008. [http://searchsoftwarequality.techtarget.com/sDefinition/0,,sid92_gci331397,00.html http://searchsoftwarequality.techtarget.com]

----

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 1 - Chart

2008-11-06T19:16:08Z

UE-InfoVis0809 0827047: Correcting References

==Definitions==

{{Quotation|A '''chart''' is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart. A chart can represent tabular numeric data, functions or some kinds of qualitative structures..|[Wikipedia]}}

----

==Overview==
The term chart can stand for several different things. A chart might be a diagram, maps that hold additional information
depending on their usage or music charts that represent the popularity of different tracks.
Charts are used to provide people a fast and better understanding of large amount of data. Therefore they depend strong on graphical elements and hold only a limited amount of text for example a title to give a quick idea what the chart is about. Examples could be to show the population of a country over the last years. Using for example a line chart, an increase or a decrease of the population is easier to see then comparing plane numbers only.

----

==Types of charts==
Depending on the available data and the information somebody is willing to provide different kinds of charts exist since
different information can be visualized better in one type of chart than another. Some of the most common are listed below and explained in more detail.
===Bar chart===
[[image:barchart.png|thumb|Sample of a bar chart.]]
Bar Charts are composed out of several rectangles usually with equal width while the hight expresses the value. The bars can
be horizontal or vertical oriented. Usually they are used to compare two ore more different values. A bar charts can be used
for example when the data can be counted.
===Histogram===
Same as the bar chart the histogram uses bars where the value is encoded in the hight of the bars. Different to a bar chart,
on a histogram the bars are ordered only horizontal moreover the bars touch each other while on the bar chart there is a space
between the different categories. A histogram is used to visualize continuous data while the bar chart visualizes discrete
data.
===Line chart===
[[image:linechart.png|thumb|Sample of a line chart.]]
A Line Chart holds several related values. This values are connected with each other from left to right to show a tendency of
the given data. As an example of usage could be the speed of a given body over some time.
===Pie chart===
[[image:piechart.png|thumb|Distribution of different Operating Systems on Desktop PCs displayed as a pie chart.]]
A Pie chart is drawn in form of a circle. The different data values are encoded as segments. The relative values are used to
define the arc length of the segments. A pie chart can be used if it should visualize the value of one segment compared to
the rest of the chart. Comparing different segments which each other might be difficult for humans. Also displaying increase
or decrease of values other charts can be a better choice.
===Gantt chart===
A Gantt chart is used for scheduling an amount of tasks. The horizontal axis is used to represent the time. The vertical axis
holds the different tasks. Inside the plane horizontal bars are used to display the tasks where the length of the bar
determines the time needed to fulfill the task. It is not possible to display which tasks depend on each other. This can be
done with the so called PERT chart.
===Other charts===
*Timeline chart
* Organizational chart
* Tree chart
* Flow chart
* Bubble chart
* Radar chart

----

==References==

* [Wikipedia 1, 2008] Chart. Wikipedia. Retrieved at: November 02, 2008. [http://en.wikipedia.org/wiki/Chart http://en.wikipedia.org/wiki/Chart]
* [Wikipedia 2, 2008] Bar chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Bar_chart http://en.wikipedia.org/wiki/Bar_chart]
* [Skymark 1, 2008] Bar charts are easy to use, and easy to abuse. Know the difference. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/bar_charts.asp http://www.skymark.com/resources]
* [Openlearn 1, 2008] More working with charts, graphs and tables 5.1 Bar charts. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210663&direct=1 http://openlearn.open.ac.uk]
* [Skymark 2, 2008] Histograms: Snapshots of Process Variation. Retrieved at: November 03, 2008.[http://www.skymark.com/resources/tools/histograms.asp http://www.skymark.com]
* [Openlearn 2, 2008] More working with charts, graphs and tables 5.3 Histograms. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210667&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 3, 2008] Pie chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Pie_chart http://en.wikipedia.org/wiki/Pie_chart]
* [Skymark 3, 2008] Pie charts: Still useful after all these years. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/pie_charts.asp http://www.skymark.com]
* [Openlearn 3, 2008] More working with charts, graphs and tables 6.1 What is a pie chart? Retrieved at: November 03, 2008. [http://openlearn.open.ac.uk/mod/resource/view.php?id=210669&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 4, 2008] Line chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Line_chart http://en.wikipedia.org/wiki/Line_chart]
* [SearchSoftwareQuality, 2008] What is Gantt chart? - a definition from Whatis.com. Retrieved at: November 03, 2008. [http://searchsoftwarequality.techtarget.com/sDefinition/0,,sid92_gci331397,00.html http://searchsoftwarequality.techtarget.com]

----

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 1 - Chart

2008-11-06T16:07:31Z

UE-InfoVis0809 0827047: Rephrasing Overview

==Definitions==

{{Quotation|A '''chart''' is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart. A chart can represent tabular numeric data, functions or some kinds of qualitative structures..|[Wikipedia]}}

----

==Overview==
The term chart can stand for several different things. A chart might be a diagram, maps that hold additional information
depending on their usage or music charts that represent the popularity of different tracks.
Charts are used to provide people a fast and better understanding of large amount of data. Therefore they depend strong on graphical elements and hold only a limited amount of text for example a title to give a quick idea what the chart is about. Examples could be to show the population of a country over the last years. Using for example a line chart, an increase or a decrease of the population is easier to see then comparing plane numbers only.

----

==Types of charts==
Depending on the available data and the information somebody is willing to provide different kinds of charts exist since
different information can be visualized better in one type of chart than another. Some of the most common are listed below and explained in more detail.
===Bar chart===
[[image:barchart.png|thumb|Sample of a bar chart.]]
Bar Charts are composed out of several rectangles usually with equal width while the hight expresses the value. The bars can
be horizontal or vertical oriented. Usually they are used to compare two ore more different values. A bar charts can be used
for example when the data can be counted.
===Histogram===
Same as the bar chart the histogram uses bars where the value is encoded in the hight of the bars. Different to a bar chart,
on a histogram the bars are ordered only horizontal moreover the bars touch each other while on the bar chart there is a space
between the different categories. A histogram is used to visualize continuous data while the bar chart visualizes discrete
data.
===Line chart===
[[image:linechart.png|thumb|Sample of a line chart.]]
A Line Chart holds several related values. This values are connected with each other from left to right to show a tendency of
the given data. As an example of usage could be the speed of a given body over some time.
===Pie chart===
[[image:piechart.png|thumb|Distribution of different Operating Systems on Desktop PCs displayed as a pie chart.]]
A Pie chart is drawn in form of a circle. The different data values are encoded as segments. The relative values are used to
define the arc length of the segments. A pie chart can be used if it should visualize the value of one segment compared to
the rest of the chart. Comparing different segments which each other might be difficult for humans. Also displaying increase
or decrease of values other charts can be a better choice.
===Gantt chart===
A Gantt chart is used for scheduling an amount of tasks. The horizontal axis is used to represent the time. The vertical axis
holds the different tasks. Inside the plane horizontal bars are used to display the tasks where the length of the bar
determines the time needed to fulfill the task. It is not possible to display which tasks depend on each other. This can be
done with the so called PERT chart.
===Other charts===
*Timeline chart
* Organizational chart
* Tree chart
* Flow chart
* Bubble chart
* Radar chart

----

==References==

* [Wikipedia 1] Chart. Wikipedia. Retrieved at: November 02, 2008. [http://en.wikipedia.org/wiki/Chart http://en.wikipedia.org/wiki/Chart]
* [Wikipedia 2] Bar chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Bar_chart http://en.wikipedia.org/wiki/Bar_chart]
* [Skymark 1] Bar charts are easy to use, and easy to abuse. Know the difference. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/bar_charts.asp http://www.skymark.com/resources]
* [Openlearn 1] More working with charts, graphs and tables 5.1 Bar charts. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210663&direct=1 http://openlearn.open.ac.uk]
* [Skymark 2] Histograms: Snapshots of Process Variation. Retrieved at: November 03, 2008.[http://www.skymark.com/resources/tools/histograms.asp http://www.skymark.com]
* [Openlearn 2] More working with charts, graphs and tables 5.3 Histograms. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210667&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 3] Pie chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Pie_chart http://en.wikipedia.org/wiki/Pie_chart]
* [Skymark 3] Pie charts: Still useful after all these years. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/pie_charts.asp http://www.skymark.com]
* [Openlearn 3] More working with charts, graphs and tables 6.1 What is a pie chart? Retrieved at: November 03, 2008. [http://openlearn.open.ac.uk/mod/resource/view.php?id=210669&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 4] Line chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Line_chart http://en.wikipedia.org/wiki/Line_chart]
* [SearchSoftwareQuality] What is Gantt chart? - a definition from Whatis.com. Retrieved at: November 03, 2008. [http://searchsoftwarequality.techtarget.com/sDefinition/0,,sid92_gci331397,00.html http://searchsoftwarequality.techtarget.com]

----

Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 08 - Aufgabe 1 - Chart

2008-11-06T15:42:46Z

UE-InfoVis0809 0827047: Add references

==Definitions==

{{Quotation|A '''chart''' is a visual representation of data, in which the data are represented by symbols such as bars in a bar chart or lines in a line chart. A chart can represent tabular numeric data, functions or some kinds of qualitative structures..|[Wikipedia]}}

----

==Overview==
The term chart can stand for several different things. A chart might be a diagram, maps that hold additional information
depending on their usage or music charts that represent the popularity of different tracks.
Charts are used to provide people a fast and better understanding of large amount of data. Therefore they hold only a limited
amount of text for example a title to give a quick idea what the chart is about. Examples could be to show the population of
a country over the last years. Using for example a line chart, an increase or a decrease of the population is easier to see
then if he would have only plane numbers.

----

==Types of charts==
Depending on the available data and the information somebody is willing to provide different kinds of charts exist since
different information can be visualized better in one form than another. Some of the most common are listed below and explained
in more detail.
===Bar chart===
[[image:barchart.png|thumb|Sample of a bar chart.]]
Bar Charts are composed out of several rectangles usually with equal width while the hight expresses the value. The bars can
be horizontal or vertical oriented. Usually they are used to compare two ore more different values. A bar charts can be used
for example when the data can be counted.
===Histogram===
Same as the bar chart the histogram uses bars where the value is encoded in the hight of the bars. Different to a bar chart,
on a histogram the bars are ordered only horizontal moreover the bars touch each other while on the bar chart there is a space
between the different categories. A histogram is used to visualize continuous data while the bar chart visualizes discrete
data.
===Line chart===
[[image:linechart.png|thumb|Sample of a line chart.]]
A Line Chart holds several related values. This values are connected with each other from left to right to show a tendency of
the given data. As an example of usage could be the speed of a given body over some time.
===Pie chart===
[[image:piechart.png|thumb|Distribution of different Operating Systems on Desktop PCs displayed as a pie chart.]]
A Pie chart is drawn in form of a circle. The different data values are encoded as segments. The relative values are used to
define the arc length of the segments. A pie chart can be used if it should visualize the value of one segment compared to
the rest of the chart. Comparing different segments which each other might be difficult for humans. Also displaying increase
or decrease of values other charts can be a better choice.
===Gantt chart===
A Gantt chart is used for scheduling an amount of tasks. The horizontal axis is used to represent the time. The vertical axis
holds the different tasks. Inside the plane horizontal bars are used to display the tasks where the length of the bar
determines the time needed to fulfill the task. It is not possible to display which tasks depend on each other. This can be
done with the so called PERT chart.
===Candlestick chart===
''not done yet''
===Other charts===
*Timeline chart
* Organizational chart
* Tree chart
* Flow chart
* Bubble chart
* Radar chart

----

==References==

* [Wikipedia 1] Chart. Wikipedia. Retrieved at: November 02, 2008. [http://en.wikipedia.org/wiki/Chart http://en.wikipedia.org/wiki/Chart]
* [Wikipedia 2] Bar chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Bar_chart http://en.wikipedia.org/wiki/Bar_chart]
* [Skymark 1] Bar charts are easy to use, and easy to abuse. Know the difference. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/bar_charts.asp http://www.skymark.com/resources]
* [Openlearn 1] More working with charts, graphs and tables 5.1 Bar charts. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210663&direct=1 http://openlearn.open.ac.uk]
* [Skymark 2] Histograms: Snapshots of Process Variation. Retrieved at: November 03, 2008.[http://www.skymark.com/resources/tools/histograms.asp http://www.skymark.com]
* [Openlearn 2] More working with charts, graphs and tables 5.3 Histograms. Retrieved at: November 03, 2008.[http://openlearn.open.ac.uk/mod/resource/view.php?id=210667&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 3] Pie chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Pie_chart http://en.wikipedia.org/wiki/Pie_chart]
* [Skymark 3] Pie charts: Still useful after all these years. Retrieved at: November 03, 2008. [http://www.skymark.com/resources/tools/pie_charts.asp http://www.skymark.com]
* [Openlearn 3] More working with charts, graphs and tables 6.1 What is a pie chart? Retrieved at: November 03, 2008. [http://openlearn.open.ac.uk/mod/resource/view.php?id=210669&direct=1 http://openlearn.open.ac.uk]
* [Wikipedia 4] Line chart - Wikipedia, the free encyclopedia. Retrieved at: November 03, 2008. [http://en.wikipedia.org/wiki/Line_chart http://en.wikipedia.org/wiki/Line_chart]
* [SearchSoftwareQuality] What is Gantt chart? - a definition from Whatis.com. Retrieved at: November 03, 2008. [http://searchsoftwarequality.techtarget.com/sDefinition/0,,sid92_gci331397,00.html http://searchsoftwarequality.techtarget.com]

----

==External links==

* [http://foo.bar/ foobar]

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Sample of a line chart
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== Copyright status ==

== Source ==
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UE-InfoVis0809 0827047: Sample of a bar chart

== Summary ==
Sample of a bar chart
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== Source ==
Created by myself in OpenOffice

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[[image:0827047.jpg|thumb]]
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* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09_-_Gruppe_08|UE InfoVis WS 2008/09 - Gruppe 08]]

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* [[Teaching:TUW_-_UE_InfoVis_WS_2008/09_-_Gruppe_08|UE InfoVis WS 2008/09 - Gruppe 08]]

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