I have found using `with` to create one column at a time to be more clear than using `within` when sticking with base R, though I don't see why `within` couldn't be repaired to behave more like `mutate`.
On July 3, 2019 5:24:14 AM PDT, Sebastien Bihorel <sebastien.biho...@cognigencorp.com> wrote: >Hi Kevin, > >I was hoping to stay within base R functionality. > >Thanks > >----- Original Message ----- >From: "Kevin Thorpe" <kevin.tho...@utoronto.ca> >To: "Sebastien Bihorel" <sebastien.biho...@cognigencorp.com> >Cc: "R Help Mailing List" <r-help@r-project.org> >Sent: Wednesday, July 3, 2019 8:11:51 AM >Subject: Re: [R] Control the variable order after multiple declarations >using within > >> On Jul 3, 2019, at 3:15 AM, Sebastien Bihorel ><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)? >> > >One way is to use mutate() from the dplyr package. > > >> Thanks >> >> Sebastien >> >> ______________________________________________ >> 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. -- Sent from my phone. Please excuse my brevity. ______________________________________________ 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.