Re: [R] Partitioning a large data frame and writing output CSVs

2008-06-02 Thread Moshe Olshansky
ep="") write.csv(newdf,filename) } --- On Tue, 3/6/08, joshgage <[EMAIL PROTECTED]> wrote: > From: joshgage <[EMAIL PROTECTED]> > Subject: [R] Partitioning a large data frame and writing output CSVs > To: r-help@r-project.org > Received: Tuesday, 3 June, 2008, 10:58

Re: [R] Partitioning a large data frame and writing output CSVs

2008-06-02 Thread jim holtman
This might give you a hint of how to do it. BTW, were the dimensions 563436x4? test <- matrix(runif(100*4),ncol=4) # create groups of 10 rows group <- rep(1:10, each=10) new.test <- cbind(test, group=group) # now get indices to write out indices <- split(seq(nrow(test)), new.test[, 'group']) # no

[R] Partitioning a large data frame and writing output CSVs

2008-06-02 Thread joshgage
Hello, I have a large dataset [536436,4] I'd like to partition the dataset into 999 groups of 564 rows and output each group as a CSV files... Obviously I could do this longhand but I know it is somehow possible to write a loop to do the same thing... I'd like to group such that the first grou