[R] reset par() within plot layout

[Janke ten Holt]

Tom Gottfried wrote:
> Janke,
> 
> Janke ten Holt schrieb:
>> Dear list,
>>
>> I would like to produce a matrix of plots, where par() is reset after
>> each plot (see below [simplified] example). When I use layout() to do
>> so, I seem to also reset the layout. I have not been able to figure out
>> how to prevent this from happening.
>>
>> Any help is greatly appreciated!
>> Janke
>>
>> Example code:
>> #Desired result is a layout of 2 plots: one red and one black
>> layout(matrix(1:2, nr=2))
>> par.ini <- par(no.readonly=TRUE)
> 
> look at par.ini: it's a list with all the argument-value pairs for par(). You might be able to solve
> your problem by removing the appropriate elements from par.ini before calling par(par.ini). Do the
> following to look which ones need to be kept for the layout:
> 
> par()
> layout(matrix(1:2, nr=2))
> par()
> 
> Tom
> 
>> par(col="red")
>> plot(1:100)
>>
>> par(par.ini)
>>
>> plot(1:10)
>>
>> ------------------
>> Janke ten Holt
>> Dept. of Psychology/Sociology
>> University of Groningen, the Netherlands
>>
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>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.

Yes, that had occured to me too. So I tried:

layout(matrix(1:2, nr=2))
par(no.readonly=TRUE)
plot(1:10)
par(no.readonly=TRUE)

This has differences in
fig
mfg
usr
xaxp
yaxp

But even keeping these back does not solve my problem. So I figured
there must be something else going on that I am unaware of...

btw, your exact suggestion,
> par()
> layout(matrix(1:2, nr=2))
> par()
does not result in any differences.