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gettingstarted
2012 Jan 12
1
parallel computation in plyr 1.7
Dear all,
I have a question regarding the possibility of parallel computation in plyr
version 1.7.
The help files of the following functions mention the argument '.parallel':
ddply, aaply, llply, daply, adply, dlply, alply, ldply, laply
However, the help files of the following functions do not mention this
argument: ?d_ply, ?aply, ?lply
Is it because parallel computation is not
2011 Oct 17
2
Foreach (doMC)
Hello,
I am trying to run a small example with foreach, but I am having some
problems. Here is the code:
*library(doMC)
registerDoMC()
zappa = list()
frank = list()
foreach (i = 1:4) %dopar% {
zappa[[i]] = kmeans (iris[-5],4)
frank[[i]] = warnings()
}*
The code runs without error. However the zappa and frank will be empty
lists.
If I use regular *for *instead, the list will be filled up