search for: selectedrows

...le(file=f_simmatrix, sep = ","); what I want is select ONLY the columns and rows entries matching the above subset1: subset2<-distm[subset1$Dataset,subset1$Dataset] returns a matrix of correct size, but with incorrect entries (established by visual inspection). this is the same as: selectedrows<-as.vector(subset1$Dataset) subset2<-distm[selectedrows,selectedrows] also verified using: rownames(subset2)%in% selectedrows [1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE [13] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE [25] FALSE...