Tena koe Satish Try using
three_wk_out[,week] <- as.numeric(tree_wk_out[,week]) HTH .... Peter Alspach > -----Original Message----- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of Vadlamani, > Satish {FLNA} > Sent: Monday, 8 February 2010 1:51 p.m. > To: r-help@r-project.org > Subject: [R] dataframe question > > Folks: > Good day. Please see the code below. three_wk_out is a > dataframe with columns wk1 through wk209. I want to change > the format of the columns. I am trying the code below but it > does not work. I need $week in the for loop interpreted as > wk1, wk2, etc. Could you please help? Thanks. > Satish > > R code below > week_list <- paste("wk",c(1:209),sep="") for (week in week_list) { > three_wk_out$week <- as.numeric(three_wk_out$week) } > > ______________________________________________ > 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. > ______________________________________________ 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.