Thank you all for the replies. Problem soved!
J


On 12/10/08, Bert Gunter <gunter.berton@gene.com> wrote:
>
> I believe the usual practice in this case is simply to give default values
> for arguments:
> function(x, y, opt.arg1 = 0, opt.arg2 = sin(1),...)
>
> If you haven't already done so, perusal of "An Introduction to R" --
> especially the "Named Arguments and Defaults" -- would be appropriate.
>
> Cheers,
> Bert Gunter
>
>
>
> -----Original Message-----
> From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-project.org]
> On
> Behalf Of Tony Breyal
> Sent: Wednesday, December 10, 2008 1:01 PM
> To: r-help@r-project.org
> Subject: Re: [R] missing argument
>
> ?missing
>
> never used it myself, but looks like it might help you  :-)
>
> Tony Breyal.
>
> On 10 Dec, 19:09, "jonas garcia" <garcia.jona...@googlemail.com>
> wrote:
> > Dear list,
> > I have a question and I'm going to give an example of my problem
> >
> > f<- function(d1, d2, d3)
> > {
> > d<- d1*d2/d3
> > return(d)
> >
> > }
> >
> > v1<- 1
> > v2<- 2
> > If I try
> > f(v1, v2, v3)
> > Error in f(v1, v2, v3) : object "v3" not found
> >
> > I obviously got the above error message.
> > I would like to add something to my function to allow me to get a certain
> > value (say zero)
> > if one of the arguments is not provided (in this case v3).
> >
> > Thanks in advance
> > J
> >
> >         [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-h...@r-project.org mailing
> listhttps://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting
> guidehttp://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help@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.
>
> ______________________________________________
> R-help@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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