How about:
for(i in c(16,24,32,40))
{
par(mfrow=c(2,4))
for(j in c(i:(i+7))
{
hist(data[,i],main=paste(colnames(data)[i],sep=""),ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100))
}
png("histogram.png")
dev.off()
}
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On Tue, Nov 17, 2009 at 5:38 AM, ychu066 <ychu...@aucklanduni.ac.nz> wrote:
>
> I have the following codes but can anyone make it shorter i.e making these
> FOR loop into one loop ...
> thanks...
>
> par(mfrow=c(2,4))
> for(i in 16:23){
>
> hist(data[,i],main=paste(colnames(data)[i],sep=""),ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100))
> }
> png("histogram.png")
> dev.off()
>
> par(mfrow=c(2,4))
> for(i in 24:31){
>
> hist(data[,i],main=paste(colnames(data)[i],sep=""),ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100))
> }
> png("histogram.png")
> dev.off()
>
> par(mfrow=c(2,4))
> for(i in 32:39){
>
> hist(data[,i],main=paste(colnames(data)[i],sep=""),ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100))
> }
> png("histogram.png")
> dev.off()
>
> par(mfrow=c(2,4))
> for(i in 40:47){
>
> hist(data[,i],main=paste(colnames(data)[i],sep=""),ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100))
> }
> png("histogram.png")
> dev.off()
>
>
> --
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> Sent from the R help mailing list archive at Nabble.com.
>
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