Hi, You can use write.table with Append = TRUE to keep on writing in the same csv file, but I don't know how to write in an specific cell of your csv file. http://stat.ethz.ch/R-manual/R-devel/library/utils/html/write.table.html
write.table (data, file = "example.csv", sep = ";", col.names = NA, append = TRUE, dec =",") I think the best thing to do once you have imported your data into R is to create a new csv file and write in it the table you need. Hope it helps, R -- View this message in context: http://r.789695.n4.nabble.com/How-insert-data-to-a-column-in-existing-csv-file-tp4551327p4551441.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.