| enrichment {GSEA} | R Documentation |
<br /> Gene set enrichment analysis (GSEA) (also called functional <br /> enrichment analysis or pathway enrichment analysis) is a <br /> method to identify classes of genes or proteins that are <br /> over-represented in a large set of genes or proteins, and <br /> may have an association with disease phenotypes. The method <br /> uses statistical approaches to identify significantly enriched <br /> or depleted groups of genes. Transcriptomics technologies <br /> and proteomics results often identify thousands of genes <br /> which are used for the analysis.
enrichment(background, geneSet,
expression = NULL,
cut.size = 3,
outputAll = TRUE,
resize = -1,
showProgress = FALSE,
... = NULL);
the expression value could be the raw expression mean value, different expression foldchange value for the group comparision, or other related gene set sort scores.