Hi, I'd like to compute the weighted mean of some variables, all using the same weight variable, for each combination of 3 factor variables. I found how I could use "summarize" (from Hmisc) to do normal means for combinations of 3 factors, but I cannot find a way of doing weighted means. Is it possible in R? Thanks in advance, Denis Chabot
Denis Chabot wrote:> Hi, > > I'd like to compute the weighted mean of some variables, all using the > same weight variable, for each combination of 3 factor variables. > > I found how I could use "summarize" (from Hmisc) to do normal means for > combinations of 3 factors, but I cannot find a way of doing weighted > means. Is it possible in R? > > Thanks in advance, > > Denis Chabot > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html >It's in one of the summarize examples! -- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University
On Sun, 9 Jan 2005, Denis Chabot wrote:> Hi, > > I'd like to compute the weighted mean of some variables, all using the same > weight variable, for each combination of 3 factor variables. > > I found how I could use "summarize" (from Hmisc) to do normal means for > combinations of 3 factors, but I cannot find a way of doing weighted means. > Is it possible in R??weighted.mean -thomas