On Thu, Feb 21, 2008 at 6:09 AM, Werner Wernersen <[EMAIL PROTECTED]> wrote: > Hi, > > I have two loosely related questions which could make > my live again a bit easier: > > 1) Is there a simple way to select a range of columns > in a data frame using column names? > I am thinking of something like mydf[1,"col4":"col8"]
Try this using builtin data frame anscombe which has columns x1 to x4 followed by y1 to y4: subset(anscombe, select = x3:y2) > > 2) I have a data frame with many columns and they all > have short variable names which is good in most cases > but sometimes it would be nice to have also a longer > descriptive name / label attached to the variable > which could then be used for printing and latex > output. Has anybody come up with a convenient way to > do that? > Right now, I am using always match or merge in case of > row names. > See ?label in package Hmisc. > Many thanks, > Werner ______________________________________________ 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.
