Hi Eric, I was hoping to avoid post-processing the result of the within call.
Sebastien From: "Eric Berger" <ericjber...@gmail.com> To: "Sebastien Bihorel" <sebastien.biho...@cognigencorp.com> Cc: "R mailing list" <r-help@r-project.org> Sent: Wednesday, July 3, 2019 8:13:22 AM Subject: Re: [R] Control the variable order after multiple declarations using within Hi Sebastien, Your 'within' command returns a dataframe. So without changing the call to within you have some options such as: df2 <- within(df, {b<-a*2; c<-b*3}) df2[c("a","b","c")] OR within(df, {b<-a*2; c<-b*3})[c("a","b","c")] OR within(df, {b<-a*2; c<-b*3})[c(1,3,2)] HTH, Eric On Wed, Jul 3, 2019 at 10:14 AM Sebastien Bihorel < [ mailto:sebastien.biho...@cognigencorp.com | sebastien.biho...@cognigencorp.com ] > wrote: Hi, The within function can be used to modify data.frames (among other objects). One can even provide multiple expressions to modify the data.frame by more than one expression. However, when new variables are created, they seem to be inserted in the data.frame in the opposite order they were declared: > df <- data.frame(a=1) > within(df, {b<-a*2; c<-b*3}) a c b 1 1 6 2 Is there a way to insert the variables in an order consistent with the order of declaration (ie, a, b, c)? Thanks Sebastien ______________________________________________ [ mailto:R-help@r-project.org | R-help@r-project.org ] mailing list -- To UNSUBSCRIBE and more, see [ https://stat.ethz.ch/mailman/listinfo/r-help | https://stat.ethz.ch/mailman/listinfo/r-help ] PLEASE do read the posting guide [ http://www.r-project.org/posting-guide.html | http://www.R-project.org/posting-guide.html ] and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.