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Rank product : ウィキペディア英語版
Rank product
The rank product is a biologically motivated test for the detection of differentially expressed genes in replicated microarray experiments.
It is a simple non-parametric statistical method based on ranks of fold changes. In addition to its use in expression profiling, it can be used to combine ranked lists in various application domains, including proteomics, metabolomics, statistical meta-analysis, and general feature selection.
==Calculation of the rank product==

Given ''n'' genes and ''k'' replicates, let e_ be the fold change and r_ the rank of gene ''g'' in the ''i''-th replicate.
Compute the rank product via the geometric mean:
: RP(g)=(\Pi_^kr_)^

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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