Re: [R] how to do by-processing using weighted.mean

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

[R] how to do by-processing using weighted.mean

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

Re: [R] how to do by-processing using weighted.mean

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