Displaying 20 results from an estimated 1000 matches similar to: "identify() seg.faults (PR#4057)"
2003 Sep 02
2
identify with image
Hola!
I will want to identify pixels in an image with the mouse, for
so getting the image data from the matrix(es), for use in subsequent
discriminant analysis. But the following bombs R:
(windows XP, rw1071)
> str(baboon)
list()
- attr(*, "size")= int [1:2] 512 512
- attr(*, "cellres")= num [1:2] 1 1
- attr(*, "bbox")= num [1:4] 0 0 512 512
- attr(*,
2008 May 23
1
seeing an S4 method, not using it
Dear list,
here is a problem I met when trying to use a method for an S4 object,
without loading the package in which the method was defined. I do not
know if this is a bug, or a mistake of mine. Normally, I think the
package in which the appropriate method is defined is loaded
automatically when calling the method. The problem is that if the
package is indeed loaded automatically, the
2005 Aug 04
3
how to read individual values from a pixmap object
Hi All,
I have a greyscale image that I am reading in through RGDAL and placing in a
pixmap object.
As an example use the logo.jpg file that comes with the RGDAL package:
#Read the file
logo <- system.file("pictures/logo.jpg", package="rgdal")[1]
x <- new("GDALReadOnlyDataset", logo)
#Create the pixmap object
xGrey <- getPixmapGDAL(x)
Now I would
2003 Sep 26
2
overlay two pixmap
Hi
I need to overlay two pixmaps (library (pixmap)). One, a pixmapGrey, is
the basis, and on this I need to overlay a pixmapIndexed, BUT: the
pixmapIndexed has set only some of its "pixels" to an indexed color,
many of its pixels should not cover the basis pixmapGrey pixel, means,
for this "in pixmapIndexed not defined pixels" it should be transparent.
What would you
2004 Aug 25
1
Pixmap problem
Hi,
I'm having trouble writing .pnm images which I think is due to a problem
with my colour space. The pixmap object seems to be looking for 72 of 8
colours (one per cell?) which doesn't seem healthy...
> library(pixmap)
> x <- pixmapIndexed(rep(1:8, 9), nrow=6, col=rainbow(8))
> x
Pixmap image
Type : pixmapIndexed
Size : 6x12
Resolution : 1x1
2009 May 18
1
S4 method dispatch and namespaces: why is default method selected
Hi,
I ran into the following peculiarity involving S4 method dispatch and
namespaces.
I develop a package which have a namespace and which depends on 'pixmap'
package, which itself does not have a namespace.
Now, in my package I have a class which has a slot for objects from
class "pixmap" and I
want to have a "plot" method for this new class. Not to clutter the
2003 Sep 30
2
using identify() together with plot () and pixmap()
Dear R users
I have a two-dimensional array, whose values I want to plot, using the
pixmapGrey class. Plotting works fine, and now I would like to be able
to identify some of the points in the plot using identify(). But I get
the following message while pressing the left mouse button:
> plot(pixmapGrey(fmri.vtc[,,slice,volume]))
> identify(fmri.vtc[,,slice,volume])
warning: no point with
2013 Mar 22
2
read.pnm question in R-beta
In R-beta (Masked Marvel), when I do the example from the read.pnm help file, this is what happens:
x <- read.pnm(system.file("pictures/logo.pgm",package="pixmap")[1])
Warning message:
In rep(cellres, length=2): x is NULL so the result will be NULL
In R-2.15.3, it's all right.
Thanks,
Erin
Erin M. Hodgess, Ph.D.
Associate Professor
Department of Computer and
2003 Apr 22
3
Problem with pixmap on R 1.7.0?
Hi R users:
I got the following message when I use the pixmap library
on R 1.7.0 over w2K platform (on R 1.6.2 it runs right).
pixmapGrey(matrix(c(0,1),128,128))
Error in .class1(object) : Object "from" not found
I download the library .zip file from:
http://cran.r-project.org/bin/windows/contrib/1.7/pixmap_0.3-2.zip
Other question:
When I try to "Install package(s) from
2012 Oct 26
1
asking about R Code
Hi, my name is Ellen. I want to ask you about R Code.
I got a code for extracting a pixel value, but I can't compile it..
It is said "Error in is.data.frame(x) : object 'lena' not found"
Here is the original full code:
library(pixmap)
lena <- read.pnm("oldlennablur.pgm")
write.table(lena@grey,"mylenna", quote=FALSE, row.names = FALSE, col.names=
1999 Aug 18
1
Your message Re: Samba and printer comments (July 5 1999)
Yes unfortunately I do not have much luck recieving help from the SAMBA
mailing list.
After much playing I found something weird that was seemingly causing
incorrect comments. Most printers would recieve the comment - "no
entries" which originally I assumed to be the default comment given by
Win95 when it could not get a proper comment. However I later found
that this is not the case.
2013 Mar 22
1
read.pnm question
Dear R People:
I am trying to replicate a cool example that I saw on the R-bloggers some
time ago by kafka399.
Here are the lines tI think may be causing the trouble:
gray_file <- read.pnm(path)
pos[i,] <- c(gray_file@grey)
The warning error that I get is
"In rep(cellres, length=2): x is NULL so the result will be NULL
Any suggestions would be much appreciated.
Thanks,
2006 Mar 09
1
count pixels of same color in pixmap object?
Dear all,
I try to figure out how to use R to count the number of pixels of the
same color in some gray-level picture. I managed to read it in either
tiff or jpeg format, but the returned pixmap object keeps its
information out of (my) reach. Is there an easy way to tabulate the
different color/graylevel pixels and their numbers? Or should I use a
completely different (free) software?
2012 Mar 20
1
overriding "summary.default" or "summary.data.frame". How?
I suppose everybody who makes a package for the first time thinks "I
can change anything!" and then runs into this same question. Has
anybody written out information on how a package can override
functions in R base in the R 2.14 (mandatory NAMESPACE era)?
Suppose I want to alphabetize variables in a summary.data.frame, or
return the standard deviation with the mean in summary output.
2003 Sep 18
2
Place a graphic into an R-plot
I have a graphic image in a file (say a *.jpeg or *.png file) and want to
put it into a plot. I have segmented the plot area by means of the layout
function and successfully plotted my data in the appropriate segments. I
cannot find how to put my graphic image onto the same plot. Searching the
archives has shed little light on my challenge.
Many thanks in anticipation.
Gordon
> version
2005 Mar 22
0
RE: etc win32utils seg faults when a pdc/bdc is queried
> -----Original Message-----
> From: "Pe?a, Botp" [mailto:botp@delmonte-phil.com]
> Sent: Tuesday, March 22, 2005 12:19 AM
> To: ruby-talk ML
> Subject: Re: etc win32utils seg faults when a pdc/bdc is queried
>
>
> Hi Win32 team,
>
> Etc seg faults when a pdc or bdc (domain controller) is
> queried. Is support for domain controllers not up yet?
>
2012 Jul 03
0
Puppet v2.7.11 Seg Faults
Hello,
Migrating some clients from an ancient client to a new infrastructure based
on 2.7.11 these are RHEL boxes
Some clients are hitting an issue
[30/06/12 05:11:37 UTC]
/usr/lib/ruby/site_ruby/1.8/puppet/util/settings.rb:733: [BUG] Segmentation
fault
[30/06/12 05:11:37 UTC] ruby 1.8.5 (2006-08-25) [x86_64-linux]
[30/06/12 05:11:37 UTC]
[30/06/12 05:11:37 UTC] Puppet SSL run return
2006 Feb 11
2
[LLVMdev] hello. seg faults on AMD64 linux
Hello,
I've installed LVM 1.6 and followed the getting started instructions and
lli hello.bc works fine but when I convert it to hello.native it seg faults.
AMD64 machine uname -a:
Linux hp5kuw 2.6.12-10-amd64-k8 # Mon Jan 16 17:23:13 UTC 2006 x86_64
GNU/Linux
llvm-gcc --version outputs:
llvm-gcc (GCC) 3.4-llvm 20051104 (LLVM 1.6)
What have I done wrong?
Wink Saville
2006 Feb 11
0
[LLVMdev] hello. seg faults on AMD64 linux
There is no x86_64 code generator at this time.
Wink Saville wrote:
> Hello,
>
> I've installed LVM 1.6 and followed the getting started instructions
> and lli hello.bc works fine but when I convert it to hello.native it
> seg faults.
>
> AMD64 machine uname -a:
>
> Linux hp5kuw 2.6.12-10-amd64-k8 # Mon Jan 16 17:23:13 UTC 2006
> x86_64 GNU/Linux
>
>
2006 May 28
1
FreeBSD Digium g.729 codec seg faults on rev 30652
Greetings-
Was running the Digium FreeBSD g.729 codec until recently when the latest
Asterisk bits were obtained via svn:
svn checkout http://svn.digium.com/svn/asterisk/trunk asterisk
This produced:
Checked out revision 30652
This on FreeBSD 6.1-RELEASE
Attempting to start asterisk it returns:
== Registered custom function URIENCODE
[codec_g729a.so]May 27 13:29:59 WARNING[71884]: