> From: Luis Ridao Cruz > > R-help, > > Long ago I asked how to sort a data frame according to one of the > columns. > But Iwas wondering ho I could "double sort" , i.e, sort according to > one column and another one afterwards. > It is quite easy in Excel but I am unable to implemented in R.
Just as easy in R, if not easier. Something like: dat[order(dat$col1, dat$col2), ] > I have searched in the R help archives and found nothing. This has been asked (and answered) numerous times on this list. There was a function posted for Kevin Wright that implements a formula interface for sorting data frames. Andy > Thank you in advance. > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
