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| The '''data type''' of a parameter describes the kind of scale within which the values of a parameter might be given in.
| | There are several definitions of '''data type''' depending on the context. The following list is not to be seen comprehensive. |
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| *'''[[nominal]]:''' Unordered set (only = or != relations) <br>Example: film titles.
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| *'''[[ordinal]]:''' Ordered set (=, !=, <, and > relations)<br>Example: film ratings.
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| *'''[[discrete]]:''' Numeric range (Integer, arithmetic possible) <br>Example:film year.
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| *'''[[continuous]]:''' Numeric range (Real/float numbers, arithmetic possible)<br>Example: film length.
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| *'''binary:''' true or false (Boolean arithmetic)<br>Example: film available.
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| Note: Other often used terms in relation to data types are ''qualitative'', ''[[quantitative]]'', and
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| ''categorical''. Whereas ''qualitative'' subsumes ''[[nominal]]'' and ''[[ordinal]]'', ''[[quantitative]]'' subsumes
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| ''discrete'' and ''continuous'', and ''categorical'' might be ''[[nominal]]'', ''[[ordinal]]'', or ''discrete'' data.
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| | *'''Synonym for [[Data Scale]]'''<br>Example: [[Spence, R.: Information Visualization - Design for Interaction (2nd Edition), Pearson Education, 2006]] |
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| [[Category:Glossary]] | | [[Category:Glossary]] |
Revision as of 14:39, 25 May 2007
There are several definitions of data type depending on the context. The following list is not to be seen comprehensive.