Try summaryBy in package doBy. e.g. using the built in dataset CO2: summaryBy(uptake ~ Plant, CO2, FUN = c(mean, min, max))
On 10/20/06, Jonathan Greenberg <[EMAIL PROTECTED]> wrote: > Is there a way to calculate, say, the mean, min and max using aggregate > using one line of code? Or do I need to call them separately (e.g. > aggregate(...,mean); aggregate(...,min)) and then merge the data back > together? > > --j > > -- > Jonathan A. Greenberg, PhD > NRC Research Associate > NASA Ames Research Center > MS 242-4 > Moffett Field, CA 94035-1000 > Office: 650-604-5896 > Cell: 415-794-5043 > AIM: jgrn307 > MSN: [EMAIL PROTECTED] > > ______________________________________________ > [email protected] 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. > ______________________________________________ [email protected] 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.
