[R] Building tkentry dynamicly

John Fox jfox at mcmaster.ca
Tue Mar 7 15:17:38 CET 2006

Dear Sean,

That was Peter Dalgaard's suggestion, posted a little while ago. It's a much
better solution to Alexandre's problem than what I suggested. I'm not sure
that it would work for the Rcmdr dialog that I mentioned, but I'll take a
look when I have a chance.


John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Sean Davis
> Sent: Tuesday, March 07, 2006 8:51 AM
> To: John Fox; a.menicacci at fr.fournierpharma.com
> Cc: R-Help
> Subject: Re: [R] Building tkentry dynamicly
> On 3/7/06 8:29, "John Fox" <jfox at mcmaster.ca> wrote:
> > Dear Alexandre,
> > 
> > It is possible to do what you want. Take a look, for 
> example, at the 
> > dialog box produced by "Statistics -> Contingency tables -> 
> Enter and 
> > analyze two-way table" in the Rcmdr package. That dialog 
> box is able 
> > to modify itself and to keep variables for an arbitrary number of 
> > tkentry() boxes. It does this by constructing names for the 
> variables 
> > as text strings, and then using assign() and eval() to set and 
> > retrieve values. (Perhaps there's a more elegant way to do 
> this.) The 
> > code for the function enterTable(), which constructs this 
> dialog, is 
> > in the file statistics-tables-menu.R in the Rcmdr source package.
> I haven't used tcltk enough to comment in any major way, but 
> I will ask a question.  Couldn't these variables be 
> maintained as a list?
> Sean
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