[R] R plot split screen in uneven panels

[Bert Gunter]

Incidentally, here is another way to do what (I think) you asked using
layout():

m <- matrix(c(1,2,2), nrow =1)
layout(m)
plot(1:10, type = "p",main = "The First Plot")
plot(10:1, type = "l", main ="The Second Plot")

On my device, the plots use different size fonts, point sizes, etc. and so
aesthetically differ. I do not know why and am too lazy to delve into the
code.

Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Wed, Dec 12, 2018 at 8:39 AM Bert Gunter <bgunter.4567 using gmail.com> wrote:

> ?layout
> Please read the Help file **carefully** and work through the **examples**.
> I cannot explain better than they.
> Here is code using layout() that I think does what you want:
>
> m <- matrix(1:2, nrow =1)
> layout(m, widths = c(1,2))
> plot(1:10, type = "p",main = "The First Plot")
> plot(10:1, type = "l", main ="The Second Plot")
>
> Note that both the lattice package and ggplot2 can also do this sort of
> thing much more flexibly(and therefore requiring more effort to learn).
>
> Cheers,
> Bert
>
>
> Bert Gunter
>
> "The trouble with having an open mind is that people keep coming along and
> sticking things into it."
> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>
>
> On Wed, Dec 12, 2018 at 7:19 AM Luigi Marongiu <marongiu.luigi using gmail.com>
> wrote:
>
>> Dear all,
>> I would like to draw two plots in the same device so that there is a
>> single row and two columns, with the first column being 1/3 of the
>> device's width.
>> I am creating a PNG object with width = 30 and height = 20 cm.
>> I know that I should use split.screen or layout but I am lost with the
>> matrix to pass to the functions.
>> For istance, I tried:
>> # distance in arbitrary units (so let's say cm) from of corners
>> # left, right, bottom, and top counting from bottom left corner
>> # that is first panel has the bottom right corner 20 cm from the bottom
>> left?
>> > m = matrix(c(0,20,40,0, 20,60,40,0), byrow=T, ncol=4)
>> > m
>>      [,1] [,2] [,3] [,4]
>> [1,]    0   20   40    0
>> [2,]   20   60   40    0
>> > split.screen(m)
>> Error in par(split.screens[[cur.screen]]) :
>>   invalid value specified for graphical parameter "fig"
>> > m[1,]
>> [1]  0 20 40  0
>> > split.screen(m[1,])
>> Error in split.screen(m[1, ]) : 'figs' must specify at least one screen
>>
>> What should be the syntax for this task?
>>
>> --
>> Best regards,
>> Luigi
>>
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>

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