Hi Greg,
I don't know if this is related to your problem, but
I get the same error (on both ubuntu and fedora linux, R 2.9) and just
found a very curious behaviour - snowfall apply functions don't like the
variable name "c".
E.g.:
c<-1
sfLapply(1:10, exp)
issues the same error you had posted, while subsequent
rm("c")
sfLapply(1:10, exp)
runs fine.
Rainer
On Wed, 31 Dec 2008, Greg Riddick wrote:
> Hello All,
>
> I can run the "lower level" functions OK, but many of the higher level
> (eg. parSApply) functions are generating errors.
>
> When running the example (from the snow help docs) for parApply on
> MacOSX 10.5.5, I get the
> following error:
>
>
> cl <- makeSOCKcluster(c("localhost","localhost"))
> sum(parApply(cl, matrix(1:100,10), 1, sum))
>
> Error in do.call("fun", lapply(args, enquote)) :
> could not find function "fun"
>
>
>
> Any ideas? Do I possibly need MPI or PVM to run the "Apply" functions?
>
> Thanks,
>
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