Error: could not find function "geditGrob"

[Taiyun Wei]

Dear all,

I run a example in the book ggplot2: Elegant Graphics for Data Analysis （page 201-202, appendix C.4）,however I found a error:

> p <- qplot(wt, mpg, data = mtcars, colour = cyl)

> grob <- ggplotGrob(p)

> grob <- geditGrob(grob, gPath("strip", "label"), 

+ gp = gpar(fontface = "bold"))

Error: could not find function "geditGrob"

> grid.newpage()

> grid.draw(grob)

Is there a function similar to geditGrob() in ggplot2 0.9.0? 

Thanks~

--
Regards,
Taiyun
--
Taiyun Wei <weit...@gmail.com>
Homepage: http://taiyun.cos.name
Phone: +86-15201142716
Renmin University of China

[baptiste auguie]

Hi,

You need to load the grid package.

HTH,

b.

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[Tengfei Yin]

Hi Baptiste and Taiyun, 

...  "editGrob" is function from grid, but is geditGrob an dropped function from ggplot2?  I cannot find it anymore...

following code works for me

library(ggplot2)

p <- qplot(wt, mpg, data = mtcars, colour = cyl)

p

grid.ls(ggplotGrob(p)) # see the guide-box for title name

grid.edit("title-2-2", gp= gpar(fontface = "italic", fontsize = 16))

Tengfei

--
Tengfei Yin
MCDB PhD student
1620 Howe Hall, 2274,
Iowa State University
Ames, IA,50011-2274
Homepage: www.tengfei.name

[baptiste auguie]

Hi,

You're right, it was in ggplot2

https://github.com/hadley/ggplot2/commit/1bc4d1e179536e3404418a9589d982c242a40793

you can simply use grid::editGrob instead with grep = TRUE, global = TRUE.

HTH,

baptiste

[benjami...@googlemail.com]

Hi everyone,

I try to find ways to assess the grob objects for some time now. I tried to follow appendix C of the ggplot2 book. However, the code snippet in section C.4 ceased to work.

p <- qplot(wt, mpg, data = mtcars, colour = cyl)
grob <- ggplotGrob(p)

grob <- editGrob(grob, gPath("strip", "label"), gp = gpar(fontface = "bold"),
                 grep = TRUE, global = TRUE)

<error--- only gTree objects can be edited>

and if I use

p
grid.ls(ggplotGrob(p))

all I get is  "layout".

My actual problem is described here:

https://groups.google.com/forum/#!topic/ggplot2/iygHrbUNy7w

As indicated in the linked post, I think that either the interfaces of ggplot2 or lattice have changed.
Or is ggplot no longer relying on lattice in the backend?

I need the margins to be nice in an automated way for a package I am currently writing (http://r-forge.r-project.org/projects/lethal/).

Can anyone give me any hints on how to proceed?

All the best,
Benjamin