Teaching:TUW - UE InfoVis WS 2008/09 - Gruppe 02 - Aufgabe 1 - Scatterplot: Difference between revisions
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correlation | =Scatterplot= | ||
A scatterplot (also called a ''scatter chart'', ''scatter diagram'' and ''scatter graph''[Wikipedia]) is a diagram in which the values of two variables are applied to the horizontal and vertical axes of a cartesian coordinate system. The resulting point in the graph represents one record from a data set. The distribution pattern of points from multiple records reveal the correlation between the selected variables in the data set. The scatterplot is not to be confused with the ''correlation plot'' (http://www.itl.nist.gov/div898/handbook/eda/section3/linecorr.htm) or ''correlation diagram'' which treat already determined correlation coefficients. | |||
Revealed Information | |||
outlyers | outlyers | ||
correlation patterns | |||
regression line | regression line | ||
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Wikipedia: http://en.wikipedia.org/wiki/Scatterplot | *Wikipedia: http://en.wikipedia.org/wiki/Scatterplot | ||
University of Illinois: http://www.mste.uiuc.edu/courses/ci330ms/youtsey/scatterinfo.html | *University of Illinois: http://www.mste.uiuc.edu/courses/ci330ms/youtsey/scatterinfo.html | ||
Information Technology Lab, NIST: http://www.itl.nist.gov/div898/handbook/eda/section3/eda33q.htm | *Information Technology Lab, NIST: http://www.itl.nist.gov/div898/handbook/eda/section3/eda33q.htm | ||
NetMBA: http://www.netmba.com/statistics/plot/scatter/ | *NetMBA: http://www.netmba.com/statistics/plot/scatter/ | ||
ChartItNow: http://www.chartitnow.com/scatter%20diagram.html | *ChartItNow: http://www.chartitnow.com/scatter%20diagram.html | ||
Revision as of 17:35, 30 October 2008
Scatterplot
A scatterplot (also called a scatter chart, scatter diagram and scatter graph[Wikipedia]) is a diagram in which the values of two variables are applied to the horizontal and vertical axes of a cartesian coordinate system. The resulting point in the graph represents one record from a data set. The distribution pattern of points from multiple records reveal the correlation between the selected variables in the data set. The scatterplot is not to be confused with the correlation plot (http://www.itl.nist.gov/div898/handbook/eda/section3/linecorr.htm) or correlation diagram which treat already determined correlation coefficients.
Revealed Information
outlyers
correlation patterns
regression line
- Wikipedia: http://en.wikipedia.org/wiki/Scatterplot
- University of Illinois: http://www.mste.uiuc.edu/courses/ci330ms/youtsey/scatterinfo.html
- Information Technology Lab, NIST: http://www.itl.nist.gov/div898/handbook/eda/section3/eda33q.htm
- NetMBA: http://www.netmba.com/statistics/plot/scatter/
- ChartItNow: http://www.chartitnow.com/scatter%20diagram.html