Displaying 1 result from an estimated 1 matches for "tp4439806p4440413".
2012 Mar 02
4
Noob question - Identity argument within aggregate function?
>aggregate(z, identity, mean)
1 2 3 4 5
1.0 3.0 5.0 6.0 7.5
> aggregate(z, mean)
Error: length(time(x)) == length(by[[1]]) is not TRUE
Can someone help me understand the error above and why "identity" is
necessary to satisfy the error
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