Hi, thank you but it does work for vectors and matrix but not dataframes, it
gives me this message error:
MeanA <- read.csv("MeanAmf.csv",header=T)
mysample <- MeanA[sample(1:nrow(MeanA), 20, replace=FALSE),]
remainder<-MeanA[-mysample]
Error in `[.default`(MeanA, -mysample) : invalid subscript type 'list'
In Ops.factor(left) : - not meaningful for factors
Any other way?
--
View this message in context:
http://r.789695.n4.nabble.com/Sampling-problems-tp4453752p4455912.html
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
