Re: [R] pdf() and histogram() in function call

From: Greg Snow <Greg.Snow_at_imail.org>
Date: Wed, 23 Apr 2008 11:00:25 -0600

Read FAQ 7.22

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow_at_imail.org
(801) 408-8111
 
 


> -----Original Message-----
> From: r-help-bounces_at_r-project.org
> [mailto:r-help-bounces_at_r-project.org] On Behalf Of qian z
> Sent: Wednesday, April 23, 2008 10:49 AM
> To: r-help_at_r-project.org
> Subject: [R] pdf() and histogram() in function call
>
>
> Here is a function I wrote. It runs no problem, but
> generate empty pdf
> files.
>
> I can't find what is the problem.
>
>
> create.pdf<- function(x, dir)
> {
> dir.create(dir, showWarnings = FALSE)
> plist<- c("a", "b" , "c", "d")
>
> for(j in plist)
> {
>
> filedir<- paste(dir, "/", j, ".pdf", sep="")
>
> form1<- as.formula(paste("~ ", j, " | var1", sep=" "))
> form2<- as.formula(paste("~ ", j, " | var2", sep=" "))
> form3<- as.formula(paste("~ ", j, " | var3", sep=" "))
> pdf(filedir)
>
> histogram(form1,data=x,type="count",
> xlab=j,main="Histogram conditioned
> on the levels of var1")
> histogram(form2,data=x,
> type="count",xlab=j,main="Histogram conditioned
> on the levels of var2")
> histogram(form3, data=x, type="count", xlab=j, main="Histogram
> conditioned on the levels of var3" )
>
> dev.off()
> }
>
>
> }
>
>
> I have tried to find the problem, but no luck! Seriously
> need HELP! Thanks.
>
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>
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>
______________________________________________ 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.
Received on Wed 23 Apr 2008 - 18:20:10 GMT

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