Jens Oldeland wrote: > Hi, > > I know there have been some discussions on that topic. all their > solutions failed in my case... > My problem is that I have a dataframe with many zeros. but while > plotting they are not useful. > so I want to get rid of column 1,3,4,......,n i have 628 columns 1000 > rows, so I can´t look manually for the "empty" columns. > > Any possible Ideas? > > > A250[1:5,1:4] > > AAPU ACTO ACRA ADBA > A1100 0 0.0 0 0 > A20100 0 0.1 0 0 > A20200 0 0.0 0 0 > A400 0 1.0 0 0 > A4100 0 0.0 0 0 > > I also didn´t find anything useful in "An Introduction to R".
A250[, sapply(A250, function(x) any(x))] A250[, apply(A250, 2, function(x) any(x))] Uwe Ligges > thank you > > Jens > ______________________________________________ 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.
