Please, Jose, do NOT misuse R-devel for such questions! There's R-help (and many good books on R and maybe your local R expert) for asking such questions.
Definitely *not* the R-devel mailing list. --> http://www.R-project.org/mail.html , the posting guide, etc. Martin Maechler, ETH Zurich {as maintainer of these R mailing lists} >> Hello. >> I need calculate the median of several column of a data.frame, in a new >> column of this data frame, but the median operator only calculate from a >> vector. >> >> I have made a functionc that calculate the median but it is very slow. >> Are there any method in any package to calculate this? >> >> Best regards. >> Jose Sierra. >> >> A B C >> -0.01678042 -0.0003354948 -0.0003354948 ............ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel