Dear all, I would like to ask you how I can avoid this warning I am getting when I am writing some results in a text file 5: In write.table(x = cor(t(collectMean_UL), t(collectMean_DL)), ... : appending column names to file the code that saves to the file look like: write(x="TEMPERATURE",file=paste(Folder,"/Corr_",".txt",sep=""),append="TRUE") write.table(x=cor(t(Data)),file=paste(Folder,"/Cor_",".txt",sep=""),eol = "\r\n",append="TRUE") if someone can help on that... I would like to thank you in advance for your reply Regards Alex [[alternative HTML version deleted]]