On Sun, Mar 6, 2011 at 11:53 PM, Liviu Andronic <landronim...@gmail.com> wrote: > On Sun, Mar 6, 2011 at 11:49 PM, Liviu Andronic <landronim...@gmail.com> > wrote: >> Dear all >> This may be obvious, but I cannot get it working. I'm trying to subset >> & sort a data frame in one go. >> x <- iris >> x$Species1 <- as.character(x$Species) >> ##subsetting alone works fine >> with(x, x[Sepal.Length==6.7,]) >> ##sorting alone works fine >> with(x, x[order(Sepal.Length, rev(sort(Species1))),]) >> ##gets subsetted, but not sorted as expected >> with(x, x[(Sepal.Length==6.7) & order(Sepal.Length, rev(sort(Species1))),]) >> ##gets subsetted, but sorts very strangely >> xa <- with(x, x[Sepal.Length==6.7,]); with(xa, xa[order(Sepal.Length, >> rev(sort(Species1))),]) >> xa <- with(x, x[Sepal.Length==6.7,]); with(xa, >> xa[order(rev(sort(Species1))),]) >> > And of course I found the culprit after sending the e-mail: wrong call > order. The following does what I want, although it's a bit messy: > xa <- with(x, x[Sepal.Length==6.7,]); with(xa, > xa[rev(order(sort(Species1))),]) > xa <- subset(x, Sepal.Length==6.7); with(xa, > xa[rev(order((sort(Species1)))),]) > But it still doesn't work on my data! Any ideas for a different approach? Liviu
> Regards > Liviu > > >> I've checked The R Inferno, Quick-R and several other places with no >> obvious solution. >> >> Any ideas? Regards >> Liviu >> >> >> -- >> Do you know how to read? >> http://www.alienetworks.com/srtest.cfm >> http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader >> Do you know how to write? >> http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail >> > > > > -- > Do you know how to read? > http://www.alienetworks.com/srtest.cfm > http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader > Do you know how to write? > http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail > -- Do you know how to read? http://www.alienetworks.com/srtest.cfm http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader Do you know how to write? http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail ______________________________________________ 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.
