Re: [Rd] tcltk and R

From: Roger Peng <>
Date: Mon, 15 Mar 2010 15:11:43 -0400

R can be built without tcl/tk and so I think it would still be good to check at runtime.


On Mon, Mar 15, 2010 at 11:21 AM, Gabor Grothendieck <> wrote:
> I have had some comments on sqldf regarding its dependence on tcltk
> such as the second last sentence on this blog post:
> sqldf does not directly use tcltk but it does use strapply in gsubfn
> for its parsing and strapply uses tcl from the tcltk package to it
> speed up -- there is also an all R version of strapply but the gsubfn
> package as a whole still depends on tcltk whether or not the user uses
> tcltk or not.    I was thinking of changing the Depends:tcltk of
> gsubfn to Suggests:tcltk and then checking for tcltk availability at
> run time so if not available it would use the slower all R version;
> however, I was under the impression that all R platforms have a
> distribution of R that includes tcltk so in principle this should not
> be necessary.
> Is that right regarding tcltk availability on various platforms?  What
> is the situation here?
> ______________________________________________
> mailing list

Roger D. Peng  |

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