Displaying 20 results from an estimated 6000 matches similar to: "What name-value pairs can be used in gpar()?"
2009 Dec 03
2
Passing arguments to gpar
Dear R-users,
I would like to know how to pass arguments to gpar() without hard-coding
them. I tried to store my arguments in a list and passed this list to
gpar(), but it did find the way to do it properly. Any help would be
appreciated.
a<- list(fontisze=8,col=3)
gpar(fontsize=8,col=3)
gpar(a)
gpar(unlist(a))
2008 Jan 12
2
Lattice equivalent of par(mfrow = )
Dear r-helpers,
Does anyone have a straightforward example of putting together three
unrelated (expect for a common y-axis) xyplot() figures in what would
be in base graphics a par(mfrow = c(1, 3)) arrangement?
_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
USPS: P.O.Box 400400 Charlottesville, VA 22904-4400
Parcels: Room 102
2007 Sep 19
4
fontsize in mosaic plot lables
Hi List,
I am trying unsucessfully to modify the fontsize of lables in mosaic:
require(vcd)
mosaic(Titanic, pop=FALSE,
labeling_args=list(rot_labels=c(bottom=90,top=90),
set_varnames = c(Sex = "Gender"),
gp_text=gpar(fontsize=20))) #can't get it to resize text
tab <- ifelse(Titanic < 6, NA, Titanic)
# it works for labeling_cells
labeling_cells(text = tab,
2008 Sep 26
2
adjusting textsize and spacing in mosaic (vcd package)
I'm trying to find a way to change the font size in a mosaic plot (the
grid version, not the base graphics one).
Here's an example to demonstrate:
#Basic plot
library(vcd)
mosaic(HairEyeColor, shade = TRUE)
#Bad first guess: this stops the default cell colouring, and doesn't
change the font size
mosaic(HairEyeColor, shade = TRUE, gp=gpar(fontsize=16))
#This successfully changes
2001 Sep 21
2
new versions of grid and lattice
Hi
There are new versions of the grid and lattice packages on CRAN:
grid 0.2 and lattice 0.3-0
These packages are still _under development_ (they are in
CRAN/src/contrib/Devel)
There have been some bug fixes and, especially in lattice, there are lots of
new features.
Descriptions of the changes are included below.
If you have any grid code, it may break under the new version because of a
2001 Sep 21
2
new versions of grid and lattice
Hi
There are new versions of the grid and lattice packages on CRAN:
grid 0.2 and lattice 0.3-0
These packages are still _under development_ (they are in
CRAN/src/contrib/Devel)
There have been some bug fixes and, especially in lattice, there are lots of
new features.
Descriptions of the changes are included below.
If you have any grid code, it may break under the new version because of a
2011 Jun 16
1
Placing Text on ggplot2 graphics vs. xyplot
Greetings to the help mailing list.
I am in the process of translating a large graphic from xyplot to ggplot2 (13 columns by about rows).
I have been unsuccessful trying to understand how to place the following text strings after three days of:
* Perusing Wickham's "gg2plot" book;
* Searching his site for gg2plot and qplot;
* Reviewing the "man pages" for gg2plot;
*
2005 Dec 08
1
grid graphics gpar(fill) argument and jpeg device
Hi everybody,
I just notice a strange behaviour of gpar's fill argument when using
non-postscript devices:
The default of the argument is transparent (according to get.gpar("fill")).
So as expected, the following code draws a nice red rectangle in the
middle of my X11 or postscript device.
pushViewport(viewport(width=0.5, height=0.5))
grid.rect(gp=gpar(fill="red"))
2010 Aug 04
1
gpar fill and transparency on devices
Dear list,
I'm puzzled by the graphical output in the following example,
library(grid)
foo <- function(){
grid.rect(gp=gpar(fill="black"))
print(get.gpar()$fill)
grid.rect(width=0.2,height=0.2)
}
png("test.png", bg = "transparent")
foo()
dev.off()
png("test1.png", bg = "white")
foo()
dev.off()
It seems that the default value of
2007 Dec 10
2
Viewport and grid.draw
Hi Deepayan and everyone,
I need to add a common legend to a group of latice
graphs, I have tried different ways using viewport and
grid.draw without success.
Here is what I have:
plot.new()
library(grid)
library('IDPmisc')
print(plot1, split=c(1,1,2,4), more=TRUE)
print(plot4, split=c(2,1,2,4), more=TRUE)
print(plot2, split=c(1,2,2,4), more=TRUE)
print(plot5, split=c(2,2,2,4),
2009 Dec 04
1
Apparent different in symbol scaling between xyplot and grid.points
Dear R-users,
For the past few days, I have been trying to find the reason why some of
my plots were showing symbols of different sizes, while I thought I was
using the same .cex arguments everywhere. The problem is exemplified by
the following example code where the xyplot and grid.points functions
are used. The scaling factor is set to 0.84 in both the functions
settings, but one can see
2006 Aug 01
1
R crashes using pdf() windows() or postscript()
Dear HelpeRs,
I have a script where I save several thousands of graphics. These are
then used in Latex through Sweave. Unfortunately R crashes while making
these plots and Windows pops up some message that I run low on virtual
memory. I tried to save the plots using pdf(), windows() and
postscript() and also tried to run it with R CMD BATCH myscript.R. But
after a while R slows down and crashes
2009 Mar 09
1
Adding text to both grid and base graphs
Dear all,
I'm stuck with the following problem:
I generate graphs using both the grid system (with lattice) and the base
system. I'd like to be able to identify these graphs later on with a bit of
identifying text (e.g. a date and some comments). Adding text to these
graphs cannot be done using a common system if you want to save them as emf
files. I now use:
mtext("labelling
2005 Oct 18
2
Lattice graphics strip labels for shingles
Dear all,
back in 2002 Martin Henry H. Stevens wrote
(https://stat.ethz.ch/pipermail/r-help/2002-May/019851.html)
> How do I control the text in strips? Specifically, I want to put in the
> ranges generated in shingle(x) where x is continuous.
with an answer from Deepyan Sarkar (see strip.new towards the end of this
message). I assume that the answer worked back then, but I've tried
2008 Jul 29
1
How to set the parameters in Trellis Graphics (by Lattice package)
Dear R users
I plot the trellis graphics by using the lattice package. Everything is
OK. Now, I want set
some parameters of the trellis graphics.
1. The tick label site. By default, only two tick labels had been output in
x-axis of my plot.
I want output four or five tick labels. In the traditional graphics system,
it will be very easy.
Just not output the axis in plot by use the parameter
2013 May 21
1
Lattice, ggplot, and pointsize
Hi!
When inserting R plots into a document using odfWeave, I fought for a
while to get Lattice plots use the same text size as base plots. I
eventually discovered that specifying a point size via e.g.
svg(pointsize=10) has no effect on Lattice plots. One needs to adjust
the size manually via:
trellis.par.set(fontsize=list(text=10, points=8))
This is also developed for both Lattice and ggplot2 by
2010 Apr 28
1
Multiple cex sizes in main for xyplot?
Folks:
I would like to write two lines of text in two different font sizes (or
faces or ...) as the title ("main") of a trellis plot. The following code
does it, but not well:
xyplot((0:1)~(0:1),
main = textGrob(lab=c("Some Text","Some More Text"),y=c(.95,.8),
gp=gpar(cex=c(1.2,1.0)))
)
There is too much space between the title text and the plot. I assume
2013 Feb 14
1
Alternate tick labels in xyplot
Dear Rhelp,
I would like to get alternate tick labels for the xyplot:
library(lattice)
library(grid)
xy <-xyplot(decrease ~ treatment, OrchardSprays,
??? main= "Some plot",
??????? groups = rowpos, type = "a",
??? ??????????? page???? = function(n){
???????????????????????? grid.text(LETTERS[j],
???????????????????????? y = 0.95,
???????????????????????? x = 0.15,
2007 Aug 08
1
Help using gPath
Hi everyone,I'm trying to figure out how to use gPath and the documentation
is not very helpful :(
I have the following plot object:
plot-surrounds::
background
plot.gTree.378::
background
guide.gTree.355:: (background.rect.345, minor-horizontal.segments.347,
minor-vertical.segments.349, major-horizontal.segments.351,
major-vertical.segments.353)
guide.gTree.356::
2004 May 18
1
Using pointsize with postscript trellis.device
I've been accustomed to specifying a postscript file and pointsize
like so:
trellis.device(postscript, file = "something.ps", pointsize = 8)
Using version
_
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gnu
status
major 1
minor 9.0
year 2004