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turbo
2007 Sep 13
1
Collapsing data frame; aggregate() or better function?
...)
works fine here,
> test <- aggregate(tester[,c(3,5:6)], tester[,1:2], sum)
> test
trip set num lfs1 lfs2
1 313 15 8 3 5
2 313 17 4 2 2
But I'm having trouble getting the same function to work on my actual
data frame which is considerably larger.
> dim(lf1.turbot)
[1] 16468 217
> test <- aggregate(lf1.turbot[,c(11, 12, 17:217)], lf1.turbot[,1:8],
sum)
Error in vector("list", prod(extent)) : vector size specified is too
large
In addition: Warning messages:
1: NAs produced by integer overflow in: ngroup * (as.integer(index) -
one)
2: NAs pr...