similar to: File opening error after 1020 files opened

Hi I am facing a problem where I would like to import a TIFF image (of spots on a nylon filter) into R (into a matrix for example). When plotting the matrix using fx. scatterplot3d I would then be able to see how the pixel-intensities are distributed in "spot-areas" on the filter - which would be very helpful. Does anynone know of a way to do this? Best regards, Peter Hagedorn ...

Is there a tool for reading a graphics file into an object? I might not be looking with the correct vocabulary, but I'm finding lots of references to producing graphics from R, but not any for inputting graphics into R. I'd like to use a jpeg image and have the data available in R for analysis. I could convert the image to another format, PPM perhaps, and parse that in, GRASS seems like

I have released a SYSLINUX 2.06-pre3. This includes modifications to ppmtolss16 so that it should now be completely compliant with all modes of the PNM specification, raw/plain, PBM/PGM/PPM, with comment lines or without. ftp://ftp.zytor.com/pub/linux/utils/boot/syslinux/Testing/ Please test it out ASAP if at all possible. Since the fixes for -pre1 and -pre2 were pretty essential, I'd like

I'm starting a time study on an area. To determine if an individual has entered the area, we are having timed photographs taken of the area. What I want to do is import the image files (either one at a time or simultaneously), convert it to a density image, take the density at multiple points in the image and determine if they are over an area average (indicating someone or something is in

Dear list, (sorry if I post to the wrong place...), Though having spent some time on it, I cannot find an answer by myself to the following behaviour of the read.image function (adimpro package) : I'm running R.2.6.2 on Windows XP. The home directory is C:\Program files\R\R-2.6.2 Version 0.4.4 of adimpro is loaded. ImageMagick 6.3.0 is installed, its directory is C:\Program

Dear R-help I want to display an image file in a new plot frame. SVG is my preferred format, but I can also consider PNG, GIF, JPEG, TIFF, and PPM (from ImageMagick). By way of background (although not material to this posting), the image file is generated by a call to 'dot' (part of the 'Graphviz' suite) after the required .dot file has been produced using hand-crafted R code.

Hi, I''m trying to automate the conversion of a PDF document received via a browser upload to a tiff image via ghostscript. I have the PDF data in a string, and I need the tiff data returned into a string. The general command I want to emulate is: type test.pdf | "c:\program files\gs\gs8.56\bin\gswin32c.exe" -q -dNOPAUSE -dBATCH -sDEVICE=tiffg4 -sOutputFile=- > test5.tiff

Maybe open.connection() should also check if the connection is already open and given an error or at least a warning if it is. Suggested code update: open.connection <- function(con, open="r", blocking=TRUE, ...) { if (!inherits(con, "connection")) stop("argument is not a connection") if (isOpen(con)) # NEW

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

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

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=

Hello, I''m working on an import utility that will match the functionality of uploading an object of a model that uses attachment_fu for thumbnailing, etc. Rather than uploading the file via a form, I want to populate the params[:image][:uploaded_data] with data from a file already on the server''s file system. So far, I''ve been able to copy to an instance of Tempfile

Hi! using ppmtolss16 tool from syslinux-2.04 with an input .pnm file created with gimp 1.2.3, I bumbed into the following error: [root at azur syslinux-2.04]# ./ppmtolss16 < /home/sr/try.pnm > /tmp/t ./ppmtolss16: Input format error 1 [root at azur syslinux-2.04]# The problem is that gimp adds the comment # CREATOR: The GIMP's PNM Filter Version 1.0 at 2nd line. Suggested fix for

Dear developers, I wonder would you consider making a save to a graphics file format (as opposed to ps)? What prompts this is that we have just finished my wife's thesis using R heavily for stats and graphs. The combination of latex, bibtex and R generated .eps worked a treat and we were very pleased with both the final outcome and the efficiency of gernerating it, especially when all the

hi, one pretty small question .... i wanted to create my own mini-distribution, using syslinux to boot the system. Everything works pretty fine, but now i wanted to see a graphic on boot time. :-) I saw i have to create a graphic with the file-extension .ppm ... but please tell me with which programm i am able to use such an extension? gimp? dont think so ... hope to hear of you ... thanks in

Dear all, Maybe, I am doing something wrong, but using R-2.5.0 on my Intel-Mac, I have problems using function callNextMethod() in method initialize. I am loading the following code as file "testS4.R": setClass("baseClass", representation(myname = "character", mydir = "character", "VIRTUAL"),

I am having trouble running the 'read.pnm' examples in this package. Can anyone tell me what is wrong? I am using the current package and running Redhat 7.2 (intel). The other examples seem fine but I can't seem to pull in files. [root at KENNY root]# R R : Copyright 2001, The R Development Core Team Version 1.3.0 (2001-06-22) R is free software and comes with ABSOLUTELY NO

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

Hello! I want to detect some environment on a remote host (in C program, getenv()), but it is failed. Here is a little program which I try to run on a remote host with command: "#ssh myhost myecho" /* myecho */ #include <stdio.h> main (){ char *dir; if ((dir = getenv("MYDIR")) != NULL) printf ("environment is %s\n",dir);

Dear knowledgeable experts :-), I am trying to get openmpi, Rmpi and SNOW running on a Myrinet/GM cluster. I'm not an IT expert, but I surely could use a working installation of Rmpi and SNOW. I try to load the Rmpi library and get the following: > library(Rmpi) [master:07230] mca: base: component_find: unable to open osc pt2pt: file not found (ignored)