Hi, I am running the following script for a different (much larger data
frame):
DF = data.frame(read.table(textConnection(" A B C D E
1 1 a 1999 1 0
2 1 b 1999 0 1
3 1 c 1999 0 1
4 1 d 1999 1 0
5 2 c 2001 1 0
6 2 d 2001 0 1
7 3 a 2004 0 1
8 3 b 2004 0 1
9 3 d 2004 0 1
10 4 b 2001 1 0
11 4 c 2001 1 0
12 4 d 2001 0 1"),head=TRUE,stringsAsFactors=FALSE))
DF<-DF[order(DF$B,DF$C),]#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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