I will try this.
thank you.
2012/11/23 Milan Bouchet-Valat <nalimi...@club.fr>
> Le vendredi 23 novembre 2012 à 03:17 +0100, vincent guyader a écrit :
> > Hi everyone,
> >
> > I made some tests with Rcmdr, to add a function with default parameters :
> >
> > For example (very simple):
> >
> > myfunction<-function(var="314"){
> > print("hello")
> > print(var)
> > }
> >
> > if I run myfunction() directly i see :
> >
> > > myfunction()
> > [1] "hello"
> > [1] "314"
> >
> > it's ok.
> >
> > But if i edit de Rcmdr-menu.txt (in
> > C:\Users\myname\Documents\R\win-library\2.15\Rcmdr\etc)
> > and add :
> >
> > menu MyMenu topMenu
> > "" ""
> > "" ""
> > item topMenu cascade
> > "MyTest" MyMenu "" ""
> > item MyMenu command "Test"
> > myfunction "" ""
> >
> > and I put myfonction into a file Rcmdr-test.R in the same folder
> >
> > I have a new button with a cascade menu, and myfunction is corectly
> > sourced.. but :
> >
> >
> > that's what append :
> >
> > > library(Rcmdr)
> > Loading required package: tcltk
> > Loading Tcl/Tk interface ... done
> > Loading required package: car
> > Loading required package: MASS
> > Loading required package: nnet
> > Sourced: Rcmdr-test.r
> >
> >
> > Rcmdr Version 1.9-2
> >
> > If i use the Menu :
> >
> > [1] "hello"
> > [1] "%var"
> >
> > ->there are %var instead off 314.
> > > myfunction
> > function(var="314"){
> > print("hello")
> > print(var)
> > }
> >
> > I think that I made a mistake but I dont know were. How can I use Rcmdr
> > menu AND a default parameter ?
> >
> > Can you help me?
> I'm not sure how it's supposed to work in Rcmdr, but a very simple
> workaround is to call from the menus a custom function defined like
> this:
> doMyfunction <- function() myfunction()
>
> Another solution is to add "..." before "var" in the arguments list of
> your function. That way, the first argument passed by Rcmdr will not
> incorrectly be matched to "var".
> myfunction <- function(..., var="314"){
> print("hello")
> print(var)
> }
>
>
> My two cents
>
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