[R] Visual stimulus presentation using R?

John Fox jfox at mcmaster.ca
Mon Jun 21 17:33:20 CEST 2004

Dear Christoph,

Several people have suggested alternative software, and that may well be the
way to go, but if you want to stick with R, then it should be possible to
use Tcl/Tk via the tcltk package to do what you want. Whether the result
would be sufficiently responsive for your needs is hard to tell without
trying it.

I hope this helps,

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Christoph Lange
> Sent: Monday, June 21, 2004 8:27 AM
> To: R Help List
> Subject: [R] Visual stimulus presentation using R?
> Dear all!
> Although the Psycho-Toolbox for Matlab is free software, Matlab isn't.
> I'm planning to do an experiment where it's essentail to 
> travel to the subjects, not let the subjects come to where 
> the Matlab licences are :-(
> So I need to use a free software for my experiment if I don't 
> want to by an extra Matlab licence (which I don't want to).
> Did anyone ever try to do presentation of visual stimuli 
> (images, practically, with a little bit of text in my case) 
> with R? I looked into the documentation of rgl, but what's 
> lacking there is (as far as I saw) the possibility to also 
> read (unbuffered) keyboard input.
> So what I need is:
>   1. put images onto the (full!)screen (qick)
>   2. read keyboard input
>   3. write results (to an R structure, presumably)
> Any idea, suggestion?
> Cheers,
>   Christoph.

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