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en:create:functions:valuevar [24.01.2015 17:11]
alexander.ritter
en:create:functions:valuevar [24.01.2015 17:13] (current)
alexander.ritter
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 ''float **valueVar**(array //variables//)'' ''float **valueVar**(array //variables//)''
  
-Calculates the biased [[http://en.wikipedia.org/wiki/Bias_of_an_estimator#Sample_variance|sample variance]] for the answer codes of all items in a question (e.g. a scale), for selected items, or for a list of variables.+Calculates the uncorrected [[http://en.wikipedia.org/wiki/Bias_of_an_estimator#Sample_variance|sample variance]] for the answer codes of all items in a question (e.g. a scale), for selected items, or for a list of variables.
  
   * //question// -- ID of a question (as a string)   * //question// -- ID of a question (as a string)
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   * //variables// -- A list (array) of variable IDs as written in the **Variables Overview**   * //variables// -- A list (array) of variable IDs as written in the **Variables Overview**
  
-**Note:** This works in the same way as ''[[:en:create:functions:valuesum|valueSum()]]'' -- the parameters are described in detail in this chapter with various examples.+**Note:** This works in the same way as ''[[:en:create:functions:valuesum|valueSum()]]'' -- the parameters are described in this chapter in detail with various examples.
  
en/create/functions/valuevar.txt · Last modified: 24.01.2015 17:13 by alexander.ritter
 
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