glog {LMGene} | R Documentation |
This function transforms the input values with the generalized log function.
glog(y, lambda)
y |
A matrix data |
lambda |
Parameter that should be determined |
Usually, matrix y
is a modified matrix from an original matrix, after deducting parameter alpha.
Lambda is one of the parameters that should be determined when using the glog function,
and these parameters are decided by using the function tranest
yt |
A matrix containing a transformmed values by glog |
David Rocke and Geun-Cheol Lee
Durbin, B.P., Hardin, J.S., Hawkins, D.M., and Rocke, D.M. (2002) A variance-stabilizing transformation for gene-expression microarray data, Bioinformatics, 18, S105–S110.
http://www.idav.ucdavis.edu/~dmrocke/
#library library(Biobase) library(LMGene) #data data(Smpd) Smpd[1:5,1:4] GloggedSmpd<-glog(Smpd-50,500) GloggedSmpd[1:5,1:4]