R help - Nov 2009 - Plotting Histogram using histogram() and for loop and I want to save the histogram individually ... HELP

I am trying to write R codes for the histogram plot and saving it out.

There will be 146 histogram plots in total?.

I have the following R codes that draws the each Histogram ?.
library(lattice)
for(i in 8:153){ 
histogram(~ data[,i] | data[,2],
data=data,,ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100)),main=paste(colnames(data)[i],sep="")
}


And I also want to save each histogram in each separate pdf file using the
following codes ?.
png("hist.png[i]")
dev.off()

But my R coding does NOT work ?. I need someone to help me with this ??.
Thanks million



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On Thu, 12 Nov 2009 19:10:52 -0800 (PST) ychu066 <ychu066
@aucklanduni.ac.nz> wrote:
> And I also want to save each histogram in each separate pdf file using the
> following codes ?.
> png("hist.png[i]")
> dev.off()
Try png(paste("hist",i,".png",sep="") instead.

-- 
Karl Ove Hufthammer

still doesnt work ...


Karl Ove Hufthammer wrote:
> 
> On Thu, 12 Nov 2009 19:10:52 -0800 (PST) ychu066 <ychu066
> @aucklanduni.ac.nz> wrote:
>> And I also want to save each histogram in each separate pdf file using
>> the
>> following codes ?.
>> png("hist.png[i]")
>> dev.off()
> 
> Try png(paste("hist",i,".png",sep="")
instead.
> 
> -- 
> Karl Ove Hufthammer
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
> 
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