[R] drc, ggplot2, and gridExtra

William Michels
Tue, 22 May 2018 22:24:54 -0000

Hi, I was able to get Eivind's code to work by slight modification of
the "grab" function:

grab <- function() {
    grid.echo()
    grid.grab()
}

Best Regards,

W. Michels, Ph.D.


On Fri, May 18, 2018 at 9:56 AM, Eivind K. Dovik <hello at
eivinddovik.com> wrote:
> On Fri, 18 May 2018, Ed Siefker wrote:
>
>> I have dose response data I have analyzed with the 'drc'
package.
>> Using plot() works great.  I want to arrange my plots and source
>> data on a single page.  I think 'gridExtra' is the usual
package for
>> this.
>>
>> I could use plot() and par(mfrow=...), but then I can't put the
source
>> data table on the page.
>>
>> gridExtra provides grid.table() which makes nice graphical tables. It
>> doesn't work with par(mfrow=...), but has the function
grid.arrange()
>> instead.
>>
>> Unfortunately, grid.arrange() doesn't accept plot(). It does work
with
>> qplot() from 'ggplot2'.  Unfortunately, qplot() doesn't
know how to
>> deal with data of class drc.
>>
>> I'm at a loss on how to proceed here.  Any thoughts?
>>
>
> Hi,
>
> If you grab the plots as grobs, you can arrange them using grid.arrange()
>
> library(gridGraphics)
> library(gridExtra)
>
> grab <- function{
>         grid.echo()
>         grid.grab()
> }
>
> x <- rnorm(100, 1, 2)
> y <- rnorm(100, 0, 0.5)
>
> plot(x,y)
> p <- grab()
>
> a <- rnorm(20, 0, 1)
> b <- rnorm(20, 1, 2)
>
> plot(a, b)
> q <- grab()
>
> grid.arrange(p, q)
>
>
> Best,
> Eivind K. Dovik
> Bergen, NO
>
>
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>
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