normalizeMotif {motifcounter} | R Documentation |
This function normalizes a PFM and optionally adds pseudo-evidence to each entry of the matrix.
normalizeMotif(pfm, pseudo = 0.01)
pfm |
An R matrix that represents a position frequency matrix |
pseudo |
Small numeric pseudo-value that is added to each entry in the PFM in order to ensure strictly positive entries. Default: pseudo = 0.01 |
A normalized PFM
# Load motif motiffile = system.file("extdata", "x1.tab", package = "motifcounter") motif = t(as.matrix(read.table(motiffile))) # Normalize motif new_motif = normalizeMotif(motif)