[R] Set size of plot: in pdf() or par() ?

[Matthieu Stigler]

Dear R List

Could I ask again my question about where the size of a plot should be 
specified (in par or pdf?). I still did not figure out, and any help 
would be much appreciated!!

Thanks a lot!

Matthieu

Le 22. 02. 11 13:53, Matthieu Stigler a écrit :
> Hi
>
> I want to have a rectangular plot of size 0.5*0.3 inches. I am having 
> surprisingly a difficult time to do it... Since I will export it, I 
> use also pdf(). The plot works fine, but once I specify the size in 
> pdf() I get problems... see:
>
> Say I specify my plot as following:
>
> par(pin=c(0.5, 0.3),mai=rep(0.1,4), omi=rep(0.01,4), mar=c(5,4,4,2))
>
> plot(runif(100))
>
>
> If I now add
>
> pdf()
>
> par(pin=c(0.5, 0.3),mai=rep(0.1,4), omi=rep(0.01,4), mar=c(5,4,4,2))
>
> plot(runif(100))
>
> dev.off()
>
>
> The resulting pdf has not the size specified!
>
> If I specifz this size in pdf(), I get an error...
>
> pdf("try.pdf", height=0.3, width=0.5)
>
> par(pin=c(0.5, 0.3),mai=rep(0.1,4), omi=rep(0.01,4), mar=c(5,4,4,2))
>
> plot(runif(100))
>
> Error in plot.new() : figure margins too large
>
>
> So obviously pdf() is modifying some other par() parameter I could not 
> figure out... Any idea?
>
> Thanks!!
>
> Matthieu