I'd do it like this:
nums = 10:30
OutList <- vector("list", length(nums)) # The key is that you need to
return in a list: your loop iterations were all operating on the same
object OutMat and accessing different elements thereof instead of
creating new objects
for(cn in seq_along(nums)) OutList[[i]] <- Counts[Counts$var < nums[cn], ]
Michael
On Wed, Dec 7, 2011 at 10:39 AM, bmoran <bruce.mo...@teagasc.ie> wrote:
> Hi, this might be basic but can't get it to work and it is hampering my R
> usage:
>
> #the loop is checking variance of rows, and cutting out rows with
> var>numVec[i]
> #I define outMat as object names I want to output to (does this make sense?
> how else
> #can I define sequential numbered output?)
> #numVec is numbers I use in the loop
>
> head(Counts)
>
> AN1 AN2 AN3 AN4 var
> GENE1 99 0 6 0 2360
> GENE2 183 136 137 160 496
> GENE3 301 199 233 187 1856
>
> outMat<-paste("NewCounts", 1:5, sep="_") #names of
> numVec<-c(100,200,500,1000,1500)
> cutGenes<-function(x) {
> for (i in 1:5) {
> keep<- Counts$var<numVec[i] #gives logical vector
> keep<-Counts[keep=="TRUE",] #apply logical vector to count
> data (table)
> outMat[i]<-keep
> }
> }
>
> #this all works fine if I define 'outMat[i]' as 'outMat' but then I can't
> use the loop! The loop seems to make #outMat[i] take the i element of 'keep'
> and only stores this.
>
> #Help much appreciated, sorry if it is VERY basic, just a head scratcher for
> me.
>
> Thanks,
>
> Bruce.
>
> --
> View this message in context:
> http://r.789695.n4.nabble.com/Output-table-from-for-loop-tp4169386p4169386.html
> Sent from the R help mailing list archive at Nabble.com.
>
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