[R-sig-hpc] getting multiple results back from foreach using MPI

[Brian G. Peterson]

On 01/17/2011 08:29 AM, Maas James Dr (MED) wrote:
> I'm relatively new to this.  I have a toy script (listed below) that runs on a SGE cluster using doMPI.  When I ask for the results ("stuff"), all I'm getting is the final variable calculated ("bsiaicORSD") as shown here.  I need the function to return both "bsiaicOR" and "bsiaic".  What do I need to do to get foreach to give me both back? I've tried using a "return" statement within the foreach loop but got a "multi argument returns are not permitted" error message.
>

<...>
   bsiaicOR <-  apply(results$OR, c(1,2), mean)
   bsiaicORSD <- apply(results$OR, c(1,2), sd)

   ret<-list(bsiaicOR,bsiaicORSD)
   return(ret)
}

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Brian G. Peterson
http://braverock.com/brian/
Ph: 773-459-4973
IM: bgpbraverock