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Walker, Sam

2006-Aug-02 19:43 UTC

[R] ggplot facet label font size

How do I change the font size in the facet labels along the edges of the
plot?

For example (from the ggplot help file):
     p<-ggplot(tips, sex ~ smoker, aesthetics=list(x=tip/total_bill))
     gghistogram(p)

In this plot, the facet labels are "smoker: No", "smoker:
Yes", "sex:
Female", "sex: Male".  What command can I use to reduce the font
size of
these labels?

In lattice terminology, cex is used to scale these strip labels.  But I
couldn't find the equivalent in ggplot.

The reason I'm asking is I have a 9x7 array of plots which I've been
plotting with lattice.  I wanted to use ggplot because I like having the
labels on the edge of the plots, but the label font size is too large
and exceeding the size of the label box.

Thanks in advance...
-Sam

Gabor Grothendieck

2006-Aug-02 23:03 UTC

head link

[R] ggplot facet label font size

On 8/2/06, Walker, Sam <s-walker at ti.com> wrote:> How do I change the font size in the facet labels along the edges of the
> plot?
>
> For example (from the ggplot help file):
>     p<-ggplot(tips, sex ~ smoker, aesthetics=list(x=tip/total_bill))
>     gghistogram(p)
>
> In this plot, the facet labels are "smoker: No", "smoker:
Yes", "sex:
> Female", "sex: Male".  What command can I use to reduce the
font size of
> these labels?
>
> In lattice terminology, cex is used to scale these strip labels.  But I
> couldn't find the equivalent in ggplot.
>
> The reason I'm asking is I have a 9x7 array of plots which I've
been
> plotting with lattice.  I wanted to use ggplot because I like having the
> labels on the edge of the plots
Note that lattice can do that by using custom strip functions:

library(ggplot) # data resides here
library(lattice)

my.strip <- function(which.given, which.panel, ...)
   if (which.given == 1 && which.panel[2] == 2)
      strip.default(which.given, which.panel, ...)

my.strip.left <- function(which.given, which.panel, ..., horizontal)
   if (which.given == 2 && which.panel[1] == 1)
      strip.default(which.given, which.panel, horizontal = FALSE, ...)

histogram(~ tip/total_bill | sex + smoker, tips, strip = my.strip,
     strip.left = my.strip.left, par.settings = list(add.text list(cex = 0.7)))

Walker, Sam

2006-Aug-03 19:11 UTC

head link

[R] ggplot facet label font size

This works OK, but there is some extra spacing between the panels, the
top axis and the strip on the top, and the left labels and panel.

How can I remove these extra spaces?

I've tried changing various layout.widths settings with no luck.  It
seems the spaces are calculated based on the number of conditioning
variables, in this case 2 (sex+smoker).


Thanks in advance...
-Sam 


-----Original Message-----
From: Gabor Grothendieck [mailto:ggrothendieck at gmail.com] 
Sent: Wednesday, August 02, 2006 6:04 PM
To: Walker, Sam
Cc: r-help at stat.math.ethz.ch
Subject: Re: [R] ggplot facet label font size

On 8/2/06, Walker, Sam <s-walker at ti.com> wrote:> How do I change the font size in the facet labels along the edges of
the> plot?
>
> For example (from the ggplot help file):
>     p<-ggplot(tips, sex ~ smoker, aesthetics=list(x=tip/total_bill))
>     gghistogram(p)
>
> In this plot, the facet labels are "smoker: No", "smoker:
Yes", "sex:
> Female", "sex: Male".  What command can I use to reduce the
font size
of> these labels?
>
> In lattice terminology, cex is used to scale these strip labels.  But
I> couldn't find the equivalent in ggplot.
>
> The reason I'm asking is I have a 9x7 array of plots which I've
been
> plotting with lattice.  I wanted to use ggplot because I like having
the> labels on the edge of the plots
Note that lattice can do that by using custom strip functions:

library(ggplot) # data resides here
library(lattice)

my.strip <- function(which.given, which.panel, ...)
   if (which.given == 1 && which.panel[2] == 2)
      strip.default(which.given, which.panel, ...)

my.strip.left <- function(which.given, which.panel, ..., horizontal)
   if (which.given == 2 && which.panel[1] == 1)
      strip.default(which.given, which.panel, horizontal = FALSE, ...)

histogram(~ tip/total_bill | sex + smoker, tips, strip = my.strip,
     strip.left = my.strip.left, par.settings = list(add.text list(cex = 0.7)))

hadley wickham

2006-Aug-03 21:43 UTC

head link

[R] ggplot facet label font size

Hi Sam,
> How do I change the font size in the facet labels along the edges of the
> plot?
Unfortunately, you can't currently change the size of those fonts.
However, it is on my todo list (as well as completely custom strip
functions) and should be available in the near future.

One thing you could do is have a look at ggopt, where you can at least
change the strip text, if not the size.

Regards,

Hadley

On 8/2/06, Walker, Sam <s-walker at ti.com> wrote:>
> For example (from the ggplot help file):
>      p<-ggplot(tips, sex ~ smoker, aesthetics=list(x=tip/total_bill))
>      gghistogram(p)
>
> In this plot, the facet labels are "smoker: No", "smoker:
Yes", "sex:
> Female", "sex: Male".  What command can I use to reduce the
font size of
> these labels?
>
> In lattice terminology, cex is used to scale these strip labels.  But I
> couldn't find the equivalent in ggplot.
>
> The reason I'm asking is I have a 9x7 array of plots which I've
been
> plotting with lattice.  I wanted to use ggplot because I like having the
> labels on the edge of the plots, but the label font size is too large
> and exceeding the size of the label box.
>
> Thanks in advance...
> -Sam
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

Walker, Sam

2006-Aug-09 15:19 UTC

head link

[R] ggplot facet label font size

Thanks for the lattice help Gabor and Deepayan.

These snippets work well.  I've only been using R a few months and it
and the user community have exceeded my expectations.

Best Regards,
-Sam

-----Original Message-----
From: Deepayan Sarkar [mailto:deepayan.sarkar at gmail.com] 
Sent: Sunday, August 06, 2006 1:18 AM
To: Walker, Sam
Cc: r-help at stat.math.ethz.ch; Gabor Grothendieck
Subject: Re: [R] ggplot facet label font size

On 8/3/06, Walker, Sam <s-walker at ti.com> wrote:>
> This works OK, but there is some extra spacing between the panels, the
> top axis and the strip on the top, and the left labels and panel.
>
> How can I remove these extra spaces?
This turns out to be surprisingly easy (surprising to me at least):


#########

my.strip <-
    function(which.given, which.panel, var.name, ...)
{
    if (which.given == 1 && which.panel[2] == 2)
        strip.default(1, which.panel[1],
                      var.name = var.name[1],
                      ...)
}


my.strip.left <-
    function(which.given, which.panel, var.name, ..., horizontal)
{
    if (which.given == 2 && which.panel[1] == 1)
        strip.default(1, which.panel[2],
                      var.name = var.name[2],
                      horizontal = FALSE, ...)
}


histogram(~ tip/total_bill | sex + smoker, tips,
          strip = my.strip,
          strip.left = my.strip.left,
          par.strip.text = list(lines = 0.6),
          par.settings           list(layout.heights = list(strip = c(0, 1)),
               layout.widths = list(strip.left = c(1, 0)),
               add.text = list(cex = 0.7)))


#########

The trick of changing two-line strips to one-line strips is not
obvious from the documentation (such as it is), it depends on the
implementation of strips.

HTH,

Deepayan
> I've tried changing various layout.widths settings with no luck.  It
> seems the spaces are calculated based on the number of conditioning
> variables, in this case 2 (sex+smoker).
>
>
> Thanks in advance...
> -Sam
>
>
> -----Original Message-----
> From: Gabor Grothendieck [mailto:ggrothendieck at gmail.com]
> Sent: Wednesday, August 02, 2006 6:04 PM
> To: Walker, Sam
> Cc: r-help at stat.math.ethz.ch
> Subject: Re: [R] ggplot facet label font size
>
> On 8/2/06, Walker, Sam <s-walker at ti.com> wrote:
> > How do I change the font size in the facet labels along the edges of
> the
> > plot?
> >
> > For example (from the ggplot help file):
> >     p<-ggplot(tips, sex ~ smoker,
aesthetics=list(x=tip/total_bill))
> >     gghistogram(p)
> >
> > In this plot, the facet labels are "smoker: No",
"smoker: Yes",
"sex:> > Female", "sex: Male".  What command can I use to reduce
the font
size> of
> > these labels?
> >
> > In lattice terminology, cex is used to scale these strip labels.
But> I
> > couldn't find the equivalent in ggplot.
> >
> > The reason I'm asking is I have a 9x7 array of plots which
I've been
> > plotting with lattice.  I wanted to use ggplot because I like having
> the
> > labels on the edge of the plots
>
> Note that lattice can do that by using custom strip functions:
>
> library(ggplot) # data resides here
> library(lattice)
>
> my.strip <- function(which.given, which.panel, ...)
>    if (which.given == 1 && which.panel[2] == 2)
>       strip.default(which.given, which.panel, ...)
>
> my.strip.left <- function(which.given, which.panel, ..., horizontal)
>    if (which.given == 2 && which.panel[1] == 1)
>       strip.default(which.given, which.panel, horizontal = FALSE, ...)
>
> histogram(~ tip/total_bill | sex + smoker, tips, strip = my.strip,
>      strip.left = my.strip.left, par.settings = list(add.text > list(cex
= 0.7)))
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html> and provide commented, minimal, self-contained, reproducible code.
>

-- 
http://www.stat.wisc.edu/~deepayan/

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