[R] Splitting data.frame and saving to csv files

Dear R Forum, I have a data.frame as df = data.frame(date = c(2013-04-15, 2013-04-14, 2013-04-13, 2013-04-12, 2013-04-11), ABC_f = c(62.80739769,81.04525895,84.65712455,12.78237251,57.61345256), LMN_d = c(21.16794336,54.6580401,63.8923307,87.59880367,87.07693716), XYZ_p =

Re: [R] Splitting data.frame and saving to csv files

Hint: nm - substring(names(df). 1,3) gives the first 3 letters of the names, assuming this is the info needed for classifying the names -- you were not explicit about this. If some sort of pattern is used, ?grep may be what you need. You can then pick columns from df by e.g. loopingt through

Re: [R] Splitting data.frame and saving to csv files

- From: Katherine Gobin katherine_go...@yahoo.com To: r-help@r-project.org Cc: Sent: Friday, April 26, 2013 9:21 AM Subject: [R] Splitting data.frame and saving to csv files Dear R Forum, I have a data.frame as df = data.frame(date = c(2013-04-15, 2013-04-14, 2013-04-13, 2013-04-12, 2013-04-11

Re: [R] Splitting data.frame and saving to csv files

...@yahoo.com Cc: R help r-help@r-project.org Sent: Friday, April 26, 2013 9:45 AM Subject: Re: [R] Splitting data.frame and saving to csv files Hi, You can do this:   lst1-lapply(split(colnames(df)[-1],gsub(_.*,,colnames(df)[-1])),function(x) {x1-cbind(date=df[,1],df[,x]);colnames(x1)[-1]- x;x1