similar to: Display Pictures in R

Displaying 20 results from an estimated 2000 matches similar to: "Display Pictures in R"

2001 Aug 29
2
Missing functions in package e1071(Win*)
Hi! After unziping the CRAN file e1071.zip on my Win95 library directory, I start R and type >library(e1071) After that, help commands of the e1071 functions work (i.e., help(read.pnm), BUT some functions themselves are not available: > read.pnm Error: Object "read.pnm" not found I've looked at the file library/R/e1071 with an ascii editor and it seems like the functions
2003 Feb 28
2
File opening error after 1020 files opened
Hi, I am trying to use "read.pnm" from the package "pixmap" to read more than 10 thousand image files in "mydir". > file.list <- dir( "mydir", full=T) > for( i in 1:length(file.list) ) { print(i) x <- read.pnm(file.list[i]) } In the beginning it was fine. But after reading 1020 images or so, the read.pnm function seems to crash on
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
2000 Oct 09
2
a listening test tool
"Willmore, David (VS Central)" wrote: > > Can ogg22pl take input from standard in? Sometimes leaving the file name > off will default it to that or by putting a '-' as the file name. Similar > things go for standard out. (stop me if these aren't familiar terms) Ogg22pl is is ogg123 with only the sampling rate variable changed. So if ogg123 can do that,
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 Jan 29
1
Error
people, I'm using the pixmap library and method read.pnm() for to read figures and it's giving the following error: Error in substr(inpstr, com1, stop = ns) : evaluation is nested too deeply: infinite recursion? I think that to be because of its size. Am I correct? Tks, Francisco. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Francisco Júnior, Computer Science - UFPE-Brazil "One
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=
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
2019 Oct 30
1
[PATCH net-next 07/14] vsock: handle buffer_size sockopts in the core
> From: Stefano Garzarella [mailto:sgarzare at redhat.com] > Sent: Wednesday, October 23, 2019 11:56 AM > Subject: [PATCH net-next 07/14] vsock: handle buffer_size sockopts in the > core > > virtio_transport and vmci_transport handle the buffer_size sockopts in a > very similar way. > > In order to support multiple transports, this patch moves this handling in the >
2017 Sep 28
2
Call for testing: OpenSSH 7.6
On Wed, 27 Sep 2017, Martin Hecht wrote: > all tests passed on > > Ubuntu 16.04.3 LTS and > Scientific Linux release 6.9 (Carbon) > > On SUSE Linux Enterprise Server 11 SP3 LTSS I had to provide a local > installation of a newer openssl. I have chosen their current LTS version > 1.0.2l with shared library support enabled, and I had to tweak with > CFLAGS and LDFLAGS
2002 Oct 14
1
import a bitmap image and add it to graphics display
Hello Is there a possibility to import and add a bitmap image (png or similar) to a R graphics display. It would be helpful e.g. to locate positions of points of a scanned map or to add a background to a R graphic. Wolfram -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send
2019 Oct 09
2
[RFC PATCH 07/13] vsock: handle buffer_size sockopts in the core
On Fri, Sep 27, 2019 at 01:26:57PM +0200, Stefano Garzarella wrote: > @@ -140,18 +145,11 @@ struct vsock_transport { > struct vsock_transport_send_notify_data *); > int (*notify_send_post_enqueue)(struct vsock_sock *, ssize_t, > struct vsock_transport_send_notify_data *); > + int (*notify_buffer_size)(struct vsock_sock *, u64 *); Is ->notify_buffer_size() called under
2019 Oct 09
2
[RFC PATCH 07/13] vsock: handle buffer_size sockopts in the core
On Fri, Sep 27, 2019 at 01:26:57PM +0200, Stefano Garzarella wrote: > @@ -140,18 +145,11 @@ struct vsock_transport { > struct vsock_transport_send_notify_data *); > int (*notify_send_post_enqueue)(struct vsock_sock *, ssize_t, > struct vsock_transport_send_notify_data *); > + int (*notify_buffer_size)(struct vsock_sock *, u64 *); Is ->notify_buffer_size() called under
2005 Jun 15
6
Compressed maildir
Greetings, I noticed a while back someone posted a patch/plugin that allowed Dovecot to use compressed mbox files. I'm now wondering how far that would put us from having compressed maildir? I have a server with more CPU than disk space, and while I can buy more HDD space, my backup solution doesn't make that practical. It seems to me that when looking for a message file, if it
2008 Jul 28
1
Are there any packages that can process images other than pixelmap (i.e. pnm)?
Hi, all, I am having trouble getting R to take pnm images via mogrify i.e. mogrify -resize 320x217 -format pnm *.png However R via pixmap says that it can't read the file. If you have any ideas like a package that can read jpeg files, etc., I would appreciate it. Best wishes, Art Roberts University of Washington
2003 Nov 21
1
How to read .bmp files into R? read.pnm throws error
Hi, Is there a way to read .bmp files into R? I have tried read.pnm from pixmap package. It returned Error in pm.readmagicnumber(con) : Not a PNM format file Anyother ways to load bitmap images? Yi-Xiong
2003 Feb 01
1
Try for to use in read.pnm()
Hi, I don't obtain to use try to capture an error of read.pnm(). I was using: res <- try(read.pnm(file_name)) But I don't understand that the variable res represents, or eiher, as I can access its attrbites. Tks, Francisco. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Francisco J?nior, Computer Science - UFPE-Brazil "One life has more value that the world whole"
2019 Jun 12
3
[libnbd PATCH 0/2] More with MSG_MORE
I'm not sure if this is worth pursuing. On paper, it makes sense (if we know we have multiple commands batched to send over the wire, AND those commands are short in length, we might as well use MSG_MORE), but the measurement numbers with it applied might just be in the noise. Eric Blake (2): examples: Enhance access patterns of threaded-reads-and-writes states: Another use for MSG_MORE
2004 Sep 10
1
Re: FLAC on Pocket PC
On Thu, May 29, 2003 at 09:10:04AM -0700, Jehan wrote: > Jehan wrote: > >Here is my test project then. > >To keep the zip small, I didn't put the flac files. Just copy the > >flac-1.1.0 directory into flactest (so that the path flac-1.1.0\include > >and flac-1.1.0\src exists in flactest). The project should then compile > >as is. > > > >All the
2009 Apr 09
1
reading an image and adding a legend
Hi all, I would like to 1. Read in an arcmap image into R (I can export pretty much any type of image jpeg, bitmap etc from arcmap) 2. Use R to create a nice colour legend in the plot First of all, Is this possible? So far I'm stuck on point 1. I have tried read.pnm() from pixmap and read.jpeg() from rgl. the pnm example provided works fine x <-