Does it work for FUN=mean? If yes, you need to print out the results of f before you return them to find the anomalous value. BTW "Error" is not a very good subject line. I don't see many posts from people reporting how well things are going :)
-----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of mathijsdevaan Sent: Friday, February 25, 2011 9:31 AM To: r-help@r-project.org Subject: [R] Error 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! -- View this message in context: http://r.789695.n4.nabble.com/Error-tp3324531p3324531.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. message may contain confidential information. If you are not the designated recipient, please notify the sender immediately, and delete the original and any copies. Any use of the message by you is prohibited. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
