similar to: Making TIFF images with rtiff

I have libtiff installed from macports, and it is sitting there in /opt/local/lib: $ ls -l /opt/local/lib/*tiff* -rwxr-xr-x 2 root admin 796684 Jun 4 22:13 /opt/local/lib/libtiff.3.dylib -rw-r--r-- 2 root admin 990296 Jun 4 22:13 /opt/local/lib/libtiff.a lrwxr-xr-x 1 root admin 15 Jun 4 22:14 /opt/local/lib/libtiff.dylib -> libtiff.3.dylib -rwxr-xr-x 2 root admin 960 Jun

I wanted to ask Eric a question or two about the rtiff package, but his listed email address bounces w/ 550 error. Does anyone know how to reach him, or whether he's actively maintaining rtiff? If anyone's interested, my primary desire is for rtiff (or other tool) to provide me with the raw range of pixel values in a tiff file. rtiff dumps straight into a pixmap object, so the

Dear all, I have been trying to speed up a process we have been done in ArcGIS. We have to read a single layer TIFF (monochrome image) in . For this, I have used the "rtiff" package. After reading the TIFF file, I compared the raw values for each pixel that I have in ArcGIS to the ones obtained in R. In ArcGIS I have discrete values in the range 0..255, while in R I have continuous

Hi, We have recently been using the tiff package for reading tiff images into the Bioconductor Package EBImage. This has been extremely helpful in conjunction with other steps to eliminate dependencies on ImageMagick. However, it seems that 12-bit images are not supported. We were wondering if there are plans to extend the functionality of the readTIFF() function in the tiff package to

Hi all, I am trying to make tiff files of lattice plots at a resolution greater than 300 dpi required by a journal (PLoS ONE). I have tried both the tiff and bitmap functions. tiff keeps panel colors but reduces axes and tick labels so they are nearly invisible. bitmap maintains correct label size but only produces greyscale. Regular plots work fine with tiff; the problem is only with lattice

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

Dear R-users, I successfully installed rtiff on by R installation, but when I tried to load it, I got: >local({pkg <- select.list(sort(.packages(all.available = TRUE))) + if(nchar(pkg)) library(pkg, character.only=TRUE)}) Error in dyn.load(file, ...) : unable to load shared library 'C:/PROGRA~1/R/R-26~1.2/library/rtiff/libs/rtiff.dll': LoadLibrary failure: Das angegebene Modul

R-helpers: Assume that I want to create a series of sequentially named R objects. For example, I might want to call these objects V1, V2, V3 ... V50. To do this, I thought of some sort of looping function like: input.value <- seq(1:50) * 3 for(i in 1:50){ paste("V", i, sep="") <- input.value[i] } Of course this loop will not work since the paste function

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.

Attention R users, especially those that are experienced enough to be opinionated, I need your input. Consider the following simple plot: x <- rnorm(100) y <- rnorm(100) plot(x, y, bty='n') A colleague (and dreaded SAS user) commented that she thought that my plots could be "cleaned up" by connecting the X and Y axes. I know that I can do that with bty='l' but I

I am looking for a book that discusses the theory of multiple imputation (and other methods of dealing with missing data) and, just as importantly, how to implement these methods in R or S-Plus. Ideally, the book would have a structure similar to Faraway (Regression), Pinheiro&Bates (Mixed Effects) and Wood (GAMs) and would be very modern (i.e. published within the last couple of years).

R-helpers: I would like to measure the correlation coefficient between the repeated measures of a single variable that is measured over time and is unbalanced. As an example, consider the Orthodont dataset from package nlme, where the model is: fit <- lmer(distance ~ age + (1 | Subject), data=Orthodont) I would like to measure the correlation b/t the variable "distance" at

Colleagues I frequently insert PDF graphics created with R into Word (Office 2004 for Mac) documents. The documents are created on either a Linux machine (RedHat 9) or a Mac (Tiger). I am using R 2.2.0. These pdf graphics often lose a great deal of resolution after insertion into Word compared to their high quality when printed as PDF documents. I recently learned that converting the

A colleague designed a script for a bar plot, which I'd like to export to my directory via the barplot command: bitmap(file="barplot.tif", type="tifflzw", height=4, width=6.5, res=1250) Unfortunately, this command produces the following error message: Error in system(paste(gsexe, "-help"), intern = TRUE, invisible = TRUE) : 'gswin32c.exe' not found

I am running R 2.3.1 on a Windows XP machine. I am trying to import some data into R that is stored as an S-Plus 7.0 .sdd file. When I run the following command, I get this error: > library(foreign) > d <- read.S(file='H:\\Research\\data.sdd') Error in read.S(file = "H:\\Research\\data.sdd") : not an S object The dataset is fairly large, roughly 13000 rows

I am running R 2.3.1 on a Windows XP machine. I am trying to import some data into R that is stored as an S-Plus 7.0 .sdd file. When I run the following command, I get this error: > library(foreign) > d <- read.S(file='H:\\Research\\data.sdd') Error in read.S(file = "H:\\Research\\data.sdd") : not an S object The dataset is fairly large, roughly 13000 rows

R plotting experts: I have a bivariate dataset composed of 300 (x,y) continuous datapoints. 297 of these points are located within the y range of [0,10], while 2 are located at 20 and one at 55. No coding errors, real outliers. When plotting these data with a scatterplot, I obviously have a problem. If I plot the full dataset with ylim = c(0,55), then I cannot see the structure in the data in

R-helpers: I am experiencing some odd behavior with the 'matrix' function that I have not experienced before and was wondering if there is something that I was missing in my code. --------------------------------- > sessionInfo() R version 2.6.1 (2007-11-26) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MONETARY=English_United

R-Experts: I am using the vglm function of the VGAM library to perform proportional odds ordinal logistic regression. The issue that I would like help with concerns the format in which the response variable must be provided for this function to work correctly. Consider the following example: ------ library(VGAM) library(MASS) attach(pneumo) pneumo # Inspect the format of the original dataset

Hello all, i am using Ubuntu 12.04 and I have R 2.14.1 When i try to install the rtiff package I got this error: > install.packages("rtiff") Installing package(s) into ?/home/lapalmejo/R/i686-pc-linux-gnu-library/2.14? (as ?lib? is unspecified) --- Please select a CRAN mirror for use in this session --- Loading Tcl/Tk interface ... done trying URL