Dear list,
this works fine:
x <- split(iris, iris$Species)
x1 <- lapply(x, function(L) transform(L, g = L[,1:4] * 3))
but I would like to multiply each Species with another factor:
setosa by 2, versicolor by 3 and virginica by 4. I've tried mapply but
without success.
Any thoughts? Thanks for any idea!
Patrick
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