[R] 2 simple question

[Paul Murrell]

Hi

On 25/04/2010 11:11 p.m., Jim Lemon wrote:
> On 04/25/2010 06:27 AM, tamas barjak wrote:
>> Hi
>>
>> I do not speak in English very well, I'm sorry.
>>
>> I try good:
>>
>> layout(matrix(1:4,ncol=2, byrow=T)) = par(mfrow=c(2, 2))
>>
>> plot(1,1)<--- anddoes plot in the upper left corner
>> plot(2, 2)<--- upper right corner
>>
>> BUT, I like plot( n, m) for example lower right corner, or lower left
>> corner, or again upper right corner etc...
>>
>> But I received an answer already:
>>
>> ?split.screen
>> ?screen   #same help page
>>
>>>  From this is it any better?
>>
> Yes, that is probably the one you want. I think that split.screen is the
> only one of the "multiple plot in one device" functions in base graphics
> that allows you to specify the area in which you want to plot.

What about ... ?

layout(matrix(4:1, ncol=2, byrow=T)) # != par(mfrow=c(2, 2))

Paul

> Unfortunately, split.screen does not seem to preserve the device
> coordinates, so if you go back to a plot:
>
> screen(2)
> lines(1:5,rnorm(5))
>
> it does not generally plot in the correct place. I think you might have
> to group your plotting commands:
>
> screen(1)
> plot(10:1)
> lines(2:4,2:4)
> screen(4)
> plot(rnorm(6))
> points(rnorm(6),col="red")
>
> which you can do with the other multiple plot functions anyway.
>
> Jim
>
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-- 
Dr Paul Murrell
Department of Statistics
The University of Auckland
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