ff <- function(filename) { dat1 <- read.csv(file=filename,header=TRUE) } filename <- "D:\dat.csv" ff(filename) ----- A R learner. -- View this message in context: http://r.789695.n4.nabble.com/How-to-read-a-file-inside-a-function-tp2316516p2316528.html Sent from the R help mailing list archive at Nabble.com.