filterPmat: Filter rows of p-value matrix under the significance...
In BioQC: Detect tissue heterogeneity in expression profiles with gene sets

Description Usage Arguments Value Author(s) Examples

Filter rows of p-value matrix under the significance threshold

1	filterPmat(x, threshold)

`x`	A matrix of p-values. It must be raw p-values and should not be transformed (e.g. logarithmic).
`threshold`	A numeric value, the minimal p-value used to filter rows. If missing, given the values of `NA`, `NULL` or number `0`, no filtering will be done and the input matrix will be returned.

Matrix of p-values. If no line is left, a empty matrix of the same dimension as input will be returned.

Jitao David Zhang <jitao_david.zhang@roche.com>

set.seed(1235)
testMatrix <- matrix(runif(100,0,1), nrow=10)

## filtering
(testMatrix.filter <- filterPmat(testMatrix, threshold=0.05))
## more strict filtering
(testMatrix.strictfilter <- filterPmat(testMatrix, threshold=0.01))
## no filtering
(testMatrix.nofilter <- filterPmat(testMatrix))