[R] Plotting Histogram using histogram() and for loop and I want to save the histogram individually ... HELP

[ychu066]

tried but still doesnt work ...

very weird ...

ychu066 wrote:
> 
> here is the codes that i tried.....
> 
>> png(paste("hist",i,".png",sep="") 
> + library(lattice)
> Error: unexpected symbol in:
> "png(paste("hist",i,".png",sep="") 
> library"
>> for(i in 8:153){ 
> + histogram(~ data[,i] | data[,2],
> data=data,ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100)))
> Error: unexpected ')' in:
> "for(i in 8:153){ 
> histogram(~ data[,i] | data[,2],
> data=data,ylab="Frequency",xlim=c(1,5),xlab="Score",ylim=c(0,100)))"
>> }
> Error: unexpected '}' in "}"
>> dev.off()
> Error in dev.off() : cannot shut down device 1 (the null device)
> 
> 
> ychu066 wrote:
>> 
>> 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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