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
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