[R] Labelling all variables at once (using Hmisc label)

[Frank Harrell]

I'm puzzled.  I provided a solution that did not require looping.
Frank

Monsieur Do wrote:
> 
> I did read the help page before posting, but didn't find the direct way...
> My function here works fine. But just for learning purposes, I'd like to
> be able to avoid the loop...
> 
> with.labels <- function(x, labels=NULL, csvfile=NULL) {
> if(!is.null(csvfile)) labels <- read.csv(csvfile, sep="\t", header=F,
> stringsAsFactors=F)[,1]
> for(i in 1:length(x)) label(x[,i]) <- labels[i]
> if(length(labels) != length(x)) cat("Warning: data and labels are not of
> same length\n")
> return(x)
> }
> 
> Thanks
> 
>> Message: 11
>> Date: Tue, 16 Aug 2011 04:22:07 -0700 (PDT)
>> From:
> Frank Harrell <f.harrell at vanderbilt.edu>
>> To:
> r-help at r-project.org
>> Subject:
> Re: [R] Labelling all variables at once (using Hmisc label)
>> Message-ID:
> <1313493727519-3746928.post at n4.nabble.com>
>> Content-Type:
> text/plain; charset=UTF-8
>> 
>> Do
> require(Hmisc); ?label to see the help file for label.  It will show you
>> how to
> do this:
>>  
>> Monsieur
> Do wrote:
>> >
> I have a dataset and a list of labels. I simply want
> 
>> > to
> apply the labels to the variables, all at once. The only way I was able
>> > to do
> it was using a loop:
>> >
>> > for (i in 1:length(data)) label(data[,i]) <-data.labels[i]
>> >
>> > I'd like to find the non-loop way to do it, using
> 
>> >
> apply or the like... Any help appreciated.
>> >
>> -----
> 
>> Frank
> Harrell
>> Department
> of Biostatistics, Vanderbilt University
> 	[[alternative HTML version deleted]]
> 
> 
> ______________________________________________
> 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.
> 


-----
Frank Harrell
Department of Biostatistics, Vanderbilt University
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