Try using aggregate instead of tapply. If that does not answer your question, then try restating it or showing what your desired output would look like (see the posting guide referenced at the bottom of every post).
-- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare [EMAIL PROTECTED] 801.408.8111 > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > project.org] On Behalf Of eric lee > Sent: Monday, September 29, 2008 6:46 AM > To: r-help@r-project.org > Subject: [R] adding labels to tapply results > > Hi, > > How do I get labels onto the output from tapply? I need the labels to > merge > the output with another data frame. Thanks. > > eric > > d <- data.frame(cbind(x=1:3, y=1:10)) > a <- with(d, tapply(y, x, sum)) > > [[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. ______________________________________________ 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.
