Dear list,
I'm answering to my own question.
I found that it is possible to reproduce the behavior in the interactive
mode this way:
quartz() # start a new device (I have also tried with x11() under Linux
# and windows() under windows with the same result.
dotchart(1:10, cex = 0.7) # first call
dotchart(1:10, cex = 0.7) # second call
The plot region is smaller in the second call than in the first one,
and then stable on further calls.
I found that saving/retauring par("mar") allowed me to have the
same plot region so that this Sweave code:
\documentclass{article}
\begin{document}
<<fig=T,width=8,height=4>>=
par(mfrow = c(1, 2), cex = 0.7)
omar <- par("mar")
for(i in 1:2){
par(mar = omar)
dotchart(1:10)
}
@
\end{document}
gave me two dotcharts side by side without size problem:
http://pbil.univ-lyon1.fr/members/lobry/mini2.pdf
Best,
Jean Lobry
P.-S. I don't understand why I have to do that because the dotchart()
function code starts with:
opar <- par("mai", "cex", "yaxs")
on.exit(par(opar))
so that I was understanding that margins were restaured on exit.
--
Jean R. Lobry ([EMAIL PROTECTED])
Laboratoire BBE-CNRS-UMR-5558, Univ. C. Bernard - LYON I,
43 Bd 11/11/1918, F-69622 VILLEURBANNE CEDEX, FRANCE
allo : +33 472 43 27 56 fax : +33 472 43 13 88
http://pbil.univ-lyon1.fr/members/lobry/
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