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375770
2011 Feb 25
4
Error
...#order by developer_id and year
f<- function(x)
{
unlist(lapply(x, FUN = function(z) cumsum(z) - z))
}
DF<-cbind(DF[,c(1:3)],ave(DF[, c(4:5)],DF$B, FUN = f))
I get the following error:
Error in `[<-.data.frame`(`*tmp*`, i, , value = integer(0)) :
replacement has 0 items, need 37597770
In addition: Warning message:
In max(i) : no non-missing arguments to max; returning -Inf
The dimensions of the data frame are (50000,108), so the last line of the
script becomes:
DF<-cbind(DF[,c(1:3)],ave(DF[, c(4:108)],DF$B, FUN = f))
Any idea how to solve this problem? Thanks!
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