I will take a look. In my real data I need to interpolate the 16 points into 64 points for each of the categories.
Thanks Marc JR -----Original Message----- From: Marc Schwartz [mailto:marc_schwa...@me.com] Sent: Tuesday, May 17, 2011 1:09 PM To: ROLL Josh F Cc: r-help@r-project.org Subject: Re: [R] Summarize by two or more attributes On May 17, 2011, at 2:55 PM, ROLL Josh F wrote: > Marc, > How could I also apply the spline function to each of the 'columns' found in > the result from > > tapply(Df$Rate,list(Df$Bin,Df$Type),sum) > > ?? Something along the lines of the following: apply(tapply(Df$Rate,list(Df$Bin,Df$Type),sum), 2, spline) If I am understanding what you want to do. Depending upon what you are trying to do, you may want to look at the other functions listed in the See Also in ?spline. HTH, Marc ______________________________________________ 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.