Hi Karl, I mainly have data frames. summarize() does not seem to work with multiple columns from a data frame. Any suggestion? Thanks.
Jun On Tue, Apr 7, 2009 at 4:49 AM, Karl Ove Hufthammer < karl.huftham...@math.uib.no> wrote: > Jun Shen: > > > summarize() can apply multiple functions to one column > > No, summarize() can apply multiple functions to *multiple* columns > (i.e., matrices). ThatÂ’s one of the advantages of summarize() over > aggregate(). > > -- > Karl Ove Hufthammer > > ______________________________________________ > 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. > -- Jun Shen PhD PK/PD Scientist BioPharma Services Millipore Corporation 15 Research Park Dr. St Charles, MO 63304 Direct: 636-720-1589 [[alternative HTML version deleted]]
______________________________________________ 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.
