Displaying 20 results from an estimated 800 matches similar to: "help with Cairo"
2011 Mar 01
2
can't open Cairo device
Dear list,
in R under wheezy the following error occurs:
> library(cairoDevice)
> Cairo()
Error in Cairo() : Graphics API version mismatch
It seems to be Debian-specific, as I tried the same under OpenSUSE 11.3
and it worked.
I tried installing cairoDevice via `apt-get install r-cran-cairodevice'
and with `install.packages("cairoDevice")' in R (without any
2011 Feb 28
0
Fwd: Re: speed up process
Dear Jim,
Here is again exactly what I did and with the output of Rprof (with this
reduced dataset and with a simpler function, it is here much faster than
in real life).
Thanks you again for your help!
## CODE ##
mydata1<- structure(list(species = structure(1:8, .Label =
c("alsen","gogor", "loalb", "mafas", "pacyn", "patro",
2011 Aug 30
1
R crash
Dear users,
By running the script below, R crashes systematically at the last
command, namely dev.off(), on Windows 7, but not on Windows XP.
I therefore don't provide a reproducible example and do not really
extract the relevant parts of the script because it has most likely
nothing to do with the script itself. I can do it though if you think it
might be relevant.
R crashes on Windows
2010 Sep 29
1
svg plot and dashed lines
Dear users,
When I boxplot(), the lines of the whiskers are dashed. However, when I
save in an svg file, the dashed lines of the whiskers are not dashed
anymore.
How can I have the dashed lines in the svg file?
I don't have this problem with a ps file, but I cannot edit such file as
easily as an svg file. That's why I'd like to stick to the svg format.
Thanks in advance,
Ivan
df
2010 May 17
1
packages on R 2.11
Dear users,
I've noticed some time ago that some of the packages I use (especially
doBy) could not run (yet) on R 2.11. So I kept on using R 2.10.
But I think it should be fine by now.
So my question is how do I check whether a package is compatible with
the last version of R? How can I check whether it works perfectly or
whether there are still some bugs to be fixed?
I could ask the
2011 Apr 26
2
what's wrong with plot(..., type="p")?
Dear users,
I'm trying to get a dot plot but always end up with a boxplot. Can
someone please tell me what I am doing wrong?
df <- structure(list(FACETTE = structure(c(1L, 1L, 1L, 1L, 2L, 2L,
+ 2L, 2L), .Label = c("base", "tip"), class = "factor"), Sq = c(274836,
+ 0.74182, 0.709205, 0.984552, 279869, 255712, 26566, 301464)), .Names =
c("FACETTE",
2010 May 20
1
use object within rda file in for loop
Dear users,
I would like to process all the lists from all *.rda files that I have
in one folder.
Up to now, I can load all the *.rda files without any problem.
The problem is when I want to access the list saved within each *.rda
file (only one list per rda file).
Here is my code:
fpath <- "D:/R"
listnames <- list.files(path=fpath, pattern=glob2rx("*.rda"),
2010 Mar 31
1
position of mismatches in all.equal()?
Dear R users,
I would like to compare two dataframes, actually their categorical
variables (as factors) only (there are 12, from column 1 to 12).
The reason I do that is that I got 2 datasets from two different methods
and I would like to be sure that each method used the same data (3D
images) to extract 2 different sets of 3D parameters. Is it clear so far?
So I thought about using
2011 Apr 20
2
user input
Dear users,
I have looked on different sources and found different functions to
prompt the user to provide input. However, I couldn't find one that does
exactly what I'm looking for.
select.list() and menu() are nice because a graphic window appears to
prompt the user. However, the user can only choose from a predefined
list of choices. readline() and scan() are more free in the
2011 May 19
2
Error in svg() : cairo-based devices are not supported on this build
Hello,
Sorry if it is not the right place..
I installed R-2.13.0 on a x86_64 linux server.
All went fine, but the svg() function yells:
> svg()
Error in svg() : cairo-based devices are not supported on this build
I have the Cairo, cairoDevice, RSvgDevice packages installed, and running.
> Cairo.capabilities()
png jpeg tiff pdf svg ps x11 win
TRUE TRUE TRUE TRUE TRUE
2011 May 04
1
Str info. Thanks for helping
It looks from str(SA) that Response IPS1 is a data.frame of class "anova", which probably cannot be coerced to vector.
Maybe you can use unlist() instead of as.vector()
Or something like
SA[["Response IPS1"]]["as.factor(WSD)",] ## to select the first row only, even maybe with unlist()
Without a better REPRODUCIBLE example, I cannot tell more (maybe some others
2011 Feb 25
1
speed up process
Dear users,
I have a double for loop that does exactly what I want, but is quite
slow. It is not so much with this simplified example, but IRL it is slow.
Can anyone help me improve it?
The data and code for foo_reg() are available at the end of the email; I
preferred going directly into the problematic part.
Here is the code (I tried to simplify it but I cannot do it too much or
else it
2010 Aug 09
0
Fwd: RE: pvclust function
You should reply to the list, not just me, and even more because I
cannot really help you!!
My guess (but I don't know this package, and even less this function) is
that pvclust() is expecting a matrix as the first argument. However,
"cluster" is no data, it is a function. Why, I don't know. Take a closer
look at ?pvclust, especially the "usage",
2010 Mar 30
1
S3 vs S4
Dear R users,
I'm still a beginner and I'm wondering whether S3 or S4 methods really
differ for my use.
I understand more or less the distinction between the 2 classes from the
documentation I've read but the big question is: _*does it make a
difference in practice**?*_
Up to now, I've worked without noticing anything, but it might be
important to differentiate and to know
2010 Mar 16
1
simple line graphics, labels and legend
Dear users,
I think my questions are pretty simple, but I got lost in the hundreds
of par() and plot() arguments and plot functions, so I don't know in
which direction I should go.
Here is my sample dataset:
test <- structure(list(DIET = structure(c(1L, 1L, 1L, 1L, 1L, 3L, 3L,
3L, 3L, 3L, 2L, 2L, 2L, 2L, 2L, 4L, 4L, 4L, 4L, 4L), .Label = c("G",
"GG", "L",
2008 Mar 12
1
gracefully handing a library load error
I have an R program I am attempting to use to generate some SVGs. I've been
using the cairoDevice library. When running a session not connected to an X
session (like if I'm sshed in), attempting "library(cairoDevice)" causes:
*** caught segfault ***
address 0x8, cause 'memory not mapped'
Traceback:
1: .C("R_gtk_setEventHandler", PACKAGE =
2010 May 19
3
save in for loop
Dear users,
My problem concerns save() within a for loop.
Here is my code:
for (i in 1:4) {
temp <- data.frame(a=(i+1):(i+10), b=LETTERS[(i+1):(i+10)])
filename <- paste("file", i, sep="")
assign(filename, temp)
save(filename, file=paste(filename, ".rda", sep=""))
}
As you can see, save() doesn't work as I would like: (1) the object
2011 Jun 20
1
Can I disable Cairo?
On Linux 2.13 by default links cairo, so png() uses it for rendering.
One of my users has performance problem, so ask if it possible to
temporary disable cairo during png() rendering so it reverts to grGraphics.
My workaround for now is to configure R without cairo, but this affects
all users that are forced to load and use CairoDevice if they wants
better quality.
I want to avoid this, is it
2011 Apr 18
1
cairo device and locator on windows
In several tries, I am finding the locator and identify functions on the
cairo device on Windows,
with R-2.13.0, do not seem to work correctly. Here is my experience with
locator where I click the
four corners of the device window.
First, with the windows() device, the results are consistent with what I see
on screen
> windows()
> plot(1,1)
> locator()
$x
[1] 0.6075000 1.3981252
2011 Mar 13
0
devSVG error
I was using devSVG to save plots of trees using the RSVGDevice package for
devSVG and tree package for the trees. When I put text into the plot,
obviously there are < and > symbols. These seem to be corrupting the svg
file which is XML and makes use of <> for syntax.
Is there any way around this, some setting in devSVG that I can turn on that
will capture these things and make them