rna.pathwayttest: Pathway t-test
In idroz/bering.rna: Pipelines for microarray analysis

Perform two-sample t-test to evaluate differential expression of pathways obtained from a gene set

1	rna.pathwayttest(expr, gs, genelist, ref, samp, set.size = c(10, 500))

`expr`	numeric matrix or data.frame consisting of gene expression values
`gs`	list. gene set collection
`genelist`	character vector. Names of genes in the dataset. Lenght of genelist and n rows of expr must match
`ref`	numeric vector. Index of reference samples in the array
`samp`	numeric vector. Index of case samples in the array
`set.size`	vector. First and second elements specify the minimum and maximum numbers of gene per pathway respectively