Displaying 1 result from an estimated 1 matches for "tp16906289p16906289".
2008 Apr 25
4
Equivalent of Excel pivot tables in R
...z
a 10 0 20
b 0 20 40
where entries are sums of var3.
I would expect it to be tapply(), but I can't see how it would be done.
Any suggestions please.
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