Displaying 3 results from an estimated 3 matches for "fsnp".
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2006 Dec 18
1
Memory problem on a linux cluster using a large data set
...column with sum of NA's
SNP = t(as.matrix(SNP)) # transpose rows and columns
set.seed(1)
snp.na<-SNP
snp.roughfix<-na.roughfix(snp.na)
fSNP<-factor(snp.roughfix[, 1]) # Asigns factor to case control status
snp.narf<- randomForest(snp.roughfix[,-1], fSNP, na.action=na.roughfix, ntree=500, mtry=10, importance=TRUE, keep.forest=FALSE, do.trace=100)
print(snp.narf)
_________________________________________________...
2007 Jan 10
1
Fw: Memory problem on a linux cluster using a large data set [Broadcast]
...> assignment does not trigger a copy. But it probably means
> that any subsequent modification of snp.na or SNP *will*
> trigger a copy, so avoid the assignment if possible.
>
> > snp.roughfix<-na.roughfix(snp.na)
>
> > fSNP<-factor(snp.roughfix[, 1]) # Asigns
> factor to case control status
> >
> > snp.narf<- randomForest(snp.roughfix[,-1], fSNP,
> > na.action=na.roughfix, ntree=500, mtry=10, importance=TRUE,
> > keep.forest=FALSE, do.trace=100)
>
> Now you...
2006 Dec 21
1
Memory problem on a linux cluster using a large data set [Broadcast]
...> assignment does not trigger a copy. But it probably means
> that any subsequent modification of snp.na or SNP *will*
> trigger a copy, so avoid the assignment if possible.
>
> > snp.roughfix<-na.roughfix(snp.na)
>
> > fSNP<-factor(snp.roughfix[, 1]) # Asigns
> factor to case control status
> >
> > snp.narf<- randomForest(snp.roughfix[,-1], fSNP,
> > na.action=na.roughfix, ntree=500, mtry=10, importance=TRUE,
> > keep.forest=FALSE, do.trace=100)
>
> Now you...