Nice suggestion, Richard. On Wed, Jul 3, 2019 at 4:28 PM Richard O'Keefe <rao...@gmail.com> wrote:
> Why not set all the new columns to dummy values to get the order you > want and then set them to their final values in the order that works > for that? > > > On Thu, 4 Jul 2019 at 00:12, Kevin Thorpe <kevin.tho...@utoronto.ca> > wrote: > > > > > > 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. > > > > > > -- > > Kevin E. Thorpe > > Head of Biostatistics, Applied Health Research Centre (AHRC) > > Li Ka Shing Knowledge Institute of St. Michael's > > Assistant Professor, Dalla Lana School of Public Health > > University of Toronto > > email: kevin.tho...@utoronto.ca Tel: 416.864.5776 Fax: 416.864.3016 > > > > ______________________________________________ > > 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. > > > > [[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. > [[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.