Dear Haris,
I'll take a look at this as soon as I have a chance, probably not until
tomorrow. In the meantime I've attached a "preprint" of an article
that
describes how to write plug-ins. Perhaps you'll find that helpful. (I
don't
know whether it will go through r-help, but you should receive the direct
email.)
Regards,
John
--------------------------------
John Fox, Professor
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox
--------------------------------
> -----Original Message-----
> From: r-help-bounces at r-project.org
> [mailto:r-help-bounces at r-project.org] On Behalf Of Charilaos Skiadas
> Sent: Thursday, November 01, 2007 2:53 PM
> To: R-help help
> Subject: [R] Rcmdr Plugin and menus.txt
>
> Hi all,
>
> I'm trying to write a plugin for R Commander, following the model of
> the TeachingDemos plugin. I am struggling trying to even add items by
> editing the menus.txt file. I would welcome any help from anyone who
> has messed with it.
> Essentially the problem I am having is: I cannot create a submenu to a
> newly created menu. Here is what the menus.txt file looks like:
>
> # type menu/item operation/parent
> label command/menu
> activation install?
> menu psychMenu topMenu
> "" ""
> "" ""
> item psychMenu command "Test"
> testOne "" ""
> item topMenu cascade
> "Psych" psychMenu
> "" ""
> menu testTwoMenu psychMenu
> "" ""
> "" ""
> item testTwoMenu command "Binomial
> distributions" testOne
> "" ""
> item testTwoMenu command "Normal
> distributions" testOne
> "" ""
> item testTwoMenu command "t
> distributions" testOne
> "" ""
> item psychMenu cascade "Submenu"
> testTwoMenu "" ""
>
>
> I would expect the above to create:
> 1) A top level menu called "psychMenu", with the title
"Psych"
> 2) An item in this menu with title "Test"
> 3) A second item, called "Submenu", and internally called
> "testTwoMenu", which is itself a submenu.
> 4) Three items in that submenu.
>
> The difference between this and the example is basically, that in the
> example, the testTwoMenu is created as a submenu of the
> distributionsMenu. If I change those last five lines above to read:
>
> menu testTwoMenu distributionsMenu
> "" ""
> "" ""
> item testTwoMenu command "Binomial
> distributions" testOne
> "" ""
> item testTwoMenu command "Normal
> distributions" testOne
> "" ""
> item testTwoMenu command "t
> distributions" testOne
> "" ""
> item distributionsMenu cascade "Submenu"
> testTwoMenu "" ""
>
>
> Then everything works fine and the submenu is created inside the
> distributions menu. On the other hand, my original code gives me the
> error:
>
> Warning in max(which((Menus[, "operationOrParent"] =>
"cascade") & (Menus[, :
> no non-missing arguments to max; returning -Inf Error in eval(expr,
> envir, enclos) : object "psychMenu" not found
>
>
> I should point out further, that keeping only the first three lines
> from my original code also works fine, and creates the new menu and an
> item in it. The problem seems to arise when I try to create a submenu
> in a menu I have just created.
>
> Any thoughts how to accomplish this, or rather what am I doing wrong?
>
> Should this go to R-SIG-GUI instead? Or is there another list more
> appropriate?
>
> Thanks,
> Haris Skiadas
> Department of Mathematics and Computer Science Hanover College
>
> ______________________________________________
> 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.
>
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