Hello,
I am trying to return a vector from a simply by but I cannot get it
working, even using simplify=TRUE.
res <- data.frame(ID=c("a","a","a","b","b"),Score=c(0,1,2,0,1))
yoda <- by(res$Score,res$ID,max,simplify=T)
class(yoda)
[1] "by"
I would like it to return a vector with the names as the ID column. The
only way I could work out how to do this was
result <- as.vector(yoda)
names(result) <- names(yoda)
result
a b
2 1
Is there a better way?
Thanks
Dan
--
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Daniel Brewer, Ph.D.
Institute of Cancer Research
Molecular Carcinogenesis
Email: [EMAIL PROTECTED]
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The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company
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