hello,
When I do OPLSDA with MetaboAnalystR(3.3.0) locally, I get an error:
I use the first demo data ( Metabolite concentrations of 77 urine samples from cancer patients measured by 1H NMR (Eisner R, et al.). Group 1- cachexic; group 2 - control)
And here were the commands I used:
library(MetaboAnalystR)
mSet<-InitDataObjects(“conc”, “stat”, FALSE)
mSet<-Read.TextData(mSet, “./data/human_cachexia.csv”, “rowu”, “disc”)
mSet<-SanityCheckData(mSet)
mSet<-ReplaceMin(mSet)
mSet<-PreparePrenormData(mSet)
mSet<-Normalization(mSet, “SumNorm”, “NULL”, “NULL”, ratio=FALSE, ratioNum=20)
mSet<-OPLSR.Anal(mSet, reg=TRUE)