>
> 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),]
Well, maybe slight correction
mysample <- sample(1:nrow(MeanA), 20, replace=FALSE)
chosen.one<-MeanA[mysample,]
remainder<-MeanA[-mysample,]
Regards
Petr
> remainder<-MeanA[-mysample]
> Error in `[.default`(MeanA, -mysample) : invalid subscript type 'list'
> In Ops.factor(left) : - not meaningful for factors
>
> Any other way?
>
> --
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> problems-tp4453752p4455912.html
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>
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