[R] clearing some part of a graph

[vincent.stoliaroff@sgcib.com]

Many thanks

I don't see any other solution than what you've proposed.
I have tried the par(mfg=c(i,j,k,l))
But it overwrites rather than replaces the previous graph

take care
vincnet



|---------+---------------------------->
|         |           th50 at leicester.ac|
|         |           .uk              |
|         |                            |
|         |           07/15/03 03:53 PM|
|         |                            |
|---------+---------------------------->
  >------------------------------------------------------------------------------------------------------------------------------|
  |                                                                                                                              |
  |       To:       Vincent STOLIAROFF/fr/socgen at socgen, r-help at stat.math.ethz.ch                                                |
  |       cc:                                                                                                                    |
  |       Subject:  RE: [R] clearing some part of a graph                                                                        |
  >------------------------------------------------------------------------------------------------------------------------------|




Dear Vincent,

You can't clear a title only. The idea is to plot without one, like

plot(...,main="",sub="",xlab="",ylab="")

and add the title by hand (as you mentioned).

Moreover, AFAIK you can't clear one plot in a multiple figure environment,
since you can only clear the graphics device (not the plot),
but you can put a new plot onto a specific part of your m.f.e. using

par(mfg=c(i,j))

see ?par and "An Introduction to R" for more details.
(I have to admit that I am unsure whether that will remove a plot there,
or create the new one on top of it - hiding the old one. That matters
with respect to dev.copy() I assume.)

HTH

Thomas

---

Thomas Hotz
Research Associate in Medical Statistics
University of Leicester
United Kingdom

Department of Epidemiology and Public Health
22-28 Princess Road West
Leicester
LE1 6TP
Tel +44 116 252-5410
Fax +44 116 252-5423

Division of Medicine for the Elderly
Department of Medicine
The Glenfield Hospital
Leicester
LE3 9QP
Tel +44 116 256-3643
Fax +44 116 232-2976


> -----Original Message-----
> From: vincent.stoliaroff at sgcib.com
> [mailto:vincent.stoliaroff at sgcib.com]
> Sent: 15 July 2003 14:31
> To: r-help at stat.math.ethz.ch
> Subject: [R] clearing some part of a graph
>
>
> Hi R lovers
>
> 2 questions:
>
> 1) I'd like to know how to clean the title, the sub title or
> the labels of
> a graph. I know how to redefine it with the function title() but it
> overwrites the previous title and do not replace it
>
> 2) How could I clear a whole plot (for example in a multiple figure
> environment)
>
> thanks for your help
> vincent
>
>
>
>
>
>
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