[R] Macro variable substitution

baptiste auguie baptiste.auguie at googlemail.com
Tue Sep 29 20:21:35 CEST 2009


Hi,

I guess you want ?assign

See also this page for a working example,

http://wiki.r-project.org/rwiki/doku.php?id=guides:assigning-variable-names

HTH,

baptiste

2009/9/29 David Young <dyoung at telefonica.net>:
> Hello All,
>
> I'm a new R user and have a question about what in SAS would be called
> macro variable substitution.  Below is some R code that doesn't work,
> but I think it will illustrate what I'd like to do.
>
> readfunc<-function(x) {
>  x <<- read.table(paste(x,".csv",sep=""), header=TRUE,sep=",")
> }
> readfunc(TEF)
>
> What I'd like to do is have the letters "TEF" become the name of the new
> R data and also be used in conjunction with ".csv" to read the file
> "TEF.csv".
>
> So working R code looks like this:
>
> TEF <- read.table(TEF.csv, header=TRUE,sep=",")
>
> but I'd like to type the changing letter sequence just once.
>
> Any suggestions would be appreciated.
>
> --
> Best regards,
>
> David Young
> Marketing and Statistical Consultant
> Madrid, Spain
> +34 913 540 381
> http://www.linkedin.com/in/europedavidyoung
>
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