Hello R People: I have a data frame with 2 numeric variables and 1 factor. There are 3 levels of the factor. I would like to get sums/means/etc of the numeric variables with respect to the factor level. I tried "table" and "subset" but have not hit upon a solution. I thought maybe "apply" would be the answer but can't figure out how to break out by factor. Any suggestions would be most appreciated. Thanks yet again. R Version 1.9.1 for windows Sincerely, Laura Holt mailto: lauraholt_983 at hotmail.com your life. http://lifeevents.msn.com
?tapply The examples there seem to describe what you want. hope this helps. spencer graves Laura Holt wrote:> Hello R People: > > I have a data frame with 2 numeric variables and 1 factor. > > There are 3 levels of the factor. > > I would like to get sums/means/etc of the numeric variables with > respect to the factor level. > > I tried "table" and "subset" but have not hit upon a solution. > > I thought maybe "apply" would be the answer but can't figure out how > to break out by factor. > > Any suggestions would be most appreciated. > > Thanks yet again. > R Version 1.9.1 for windows > Sincerely, > Laura Holt > mailto: lauraholt_983 at hotmail.com > > > your life. http://lifeevents.msn.com > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html