Contrast variable: Difference between revisions

Revision as of 16:03, 23 July 2011

Revision as of 09:33, 25 July 2011

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{{Merge to|Contrast (statistics)|discuss=Talk:Contrast variable#Merge discussion |date=July 2011}}

In [[statistics]], a '''contrast variable''' is a [[linear combination]] of [[random variable]]s in which the sum of the coefficients is zero<ref name=ZhangPharmacogenomics2009>{{cite journal |author=Zhang XHD

|title= A method for effectively comparing gene effects in multiple conditions in RNAi and expression-profiling research