Nothing
"adjust.linearmodel"<-function (g, o.batches, robust.lm=F, small.memory=F){
if(is(g,"matrix")==FALSE){stop("g is not a matrix")}
if(nrow(data.frame(o.batches))!=ncol(g)){stop("o.batches has not the same number of samples as ncol(g)")}
if(!is.data.frame(o.batches)){
o.batches<-data.frame(o.batches,row.names=colnames(g))}
naing<-sum(apply(g,2,function(x) sum(is.na(x))))
gc()
if (naing>0){stop("No NAs in g are allowed for adjust.linearmodel")}
nas<-apply(o.batches,1,function(x) sum(is.na(x)))
index<-which(nas==0)
gafter<-matrix(nrow=nrow(g),ncol=ncol(g),dimnames=dimnames(g))
if (length(which(nas>0))>0){gafter[,which(nas>0)]<-g[,which(nas>0)]
warning(paste("Samples",toString(which(nas>0)),"are not adjusted because of NAs in o.batches"))}
if(robust.lm==F){
if(small.memory==F){
fit1 <- lm(t(g) ~ ., o.batches) #full input, residuals come without NA samples
gafter[,index] = t(fit1$residuals)}
else{
for(i in 1:nrow(g)){
gafter[i,index] <- lm(g[i,] ~ ., o.batches)$residuals}
}
}
else {
for(i in 1:nrow(g)){
gafter[i,index] <- rlm(g[i,] ~ ., o.batches)$residuals}
}
rowm<-rowMeans(g[,index])
gc()
gafter[,index]<-gafter[,index]+rowm
gc()
return(gafter)
}
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