similar to: Unexpected error "subset assignment" (bug?)

Hi, I am trying to write a function to read in a whole text file as a single string ( so I can calculate its "sha1" hash function using package "digest"). I need a single string containing the whole file, and so far I was using paste(readLines(fileName), collapse = ""). Unfortunately this function gives me warnings : incomplete final line found by readLines on

Hi, Today, I performed automatic updates of packages and somehow lost "class" package. I loaded a library that depended on it and got: Error: package 'class' could not be loaded In addition: Warning message: there is no package called 'class' in: library(pkg, character.only = TRUE, logical = TRUE, lib.loc = lib.loc) I tried to load it by instal-package: class (VR) and

Hi, I was playing with Mandelbrot sets and come up with the following code, I thought I would share: library(fields) # for tim.colors library(caTools) # for write.gif m = 400 # grid size C = complex( real=rep(seq(-1.8,0.6, length.out=m), each=m ), imag=rep(seq(-1.2,1.2, length.out=m), m ) ) C = matrix(C,m,m) Z = 0 X = array(0, c(m,m,20)) for (k in 1:20) { Z =

Hi, I am looking for functions that would allow me to access raw binary data of R vectors. One way would be to use: x = (1:10)*pi writeBin(x, "temp.bin") r = readBin("temp.bin", "raw", n=length(x)*8) Other to write my own C code. Is there any other simpler way? I this message is a rewording of my yesterday message "Looking for function for Double to

Hi, I suddenly started getting strange errors while working on my caTools package: >RCMD install C:/programs/R/rw2011/src/library/caTools ...... preparing package caTools for lazy loading Error in file(file, "r", encoding = encoding) : all connections are in use Execution halted make: *** [lazyload] Error 1 *** Installation of caTools failed *** I searched

Hi, I need to split a string into 2 strings, with the split point defined by the last occurrence of some substring. I come up with some convoluted code to do so: str = "Chance favors the prepared mind" sub = "e" y = unlist(strsplit(str,sub)) z = cbind(paste(y[-length(y)], sub, sep="", collapse = ""), y[length(y)]); y z z[1] z[2] Is there a simpler way

Hi, I am trying to debug my code and looking for any tool to help me out with it. My main problem is with the error messages I can not figure out where they come from (what function produced them) and what do they mean. Is there such a think as list of error messages produced by R and standard R packages, and what do they mean? Or any tool to extract information which function produced the

Hi, Consider the following code: require(XML) xmlFile = paste( "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n", "<mzXML xmlns=\"a\" xmlns:xsi=\"b\" xsi:schemaLocation=\"c\">\n", "<parentFile a=\"a\" b=\"b\" />\n",

Hi, I have a C code which produces array of integers and potentially a string, and I have problems passing the string out. Here is the relevant part of the code: 1 PROTECT(Ret = allocVector(INTSXP, n)); 2 ret = (int*) INTEGER(Ret); /* get pointer to R's Ret */ 3 for(i=0; i<n; i++) ret[i] = data[i]; 4 Free(data); 5 i=1; 6 if (comment) { // comment was found 7 n

Hi, I have a C code which produces array of integers and potentially a string, and I have problems passing the string out. Here is the relevant part of the code: 1 PROTECT(Ret = allocVector(INTSXP, n)); 2 ret = (int*) INTEGER(Ret); /* get pointer to R's Ret */ 3 for(i=0; i<n; i++) ret[i] = data[i]; 4 Free(data); 5 i=1; 6 if (comment) { // comment was found 7 n

Hi, The latest version of R had some changes to functions "readbin() and writeBin() [which] now support raw vectors as well as filenames and connections.". As a result I am working on retiring "raw2bin" and "bin2raw" functions from "caTools" package which do exactly the same. Thanks to Prof. Ripley for bringing this change to my attention. Which brings me

Hi, Consider the following example: sort(10:1, partial=3) ## 1 2 3 7 6 5 4 8 9 10 sort(10:1, index=T) ## $x: 1 2 3 4 5 6 7 8 9 10 ## $ix: 10 9 8 7 6 5 4 3 2 1 sort(10:1, partial=3, index=T) ## 1 2 3 7 6 5 4 8 9 10 The first 2 calls gave expected returns; however, the third one did not returned an index as requested. I could not find anything about it in

Hi, Lately my Latex engine used for checking packages stop working, and I can not figure out how to fix it. When creating my package (caMassClass) I get the * checking caMassClass-manual.tex ... ERROR LaTeX errors when creating DVI version. This typically indicates Rd problems. message. I look in caMassClass-manual.log file and find ! LaTeX Error: File `Rd.sty' not found.

Hi, A minor announcement. I just added two functions for reading and writing GIF files to my caTools package. Input and output is in the form of standard R matrices or arrays, and standard R color-maps (palettes). The functions can read and write both regular GIF images, as well as, multi-frame animated GIFs. Most of the work is done in C level code (included), so functions do not use any

Hi, I was trying to figure out if there is a function in R that tests if R object contains only integers. I though "is.integer" would be it, but this function only checks "whether its argument is of integer type or not". As a result x = (1:5)^2 is.integer(x) Returns false. Of course I can write my own function like "!any(x!=as.integer(x))" but I am just trying to

Hi, First, let me thank Jaroslaw for making this survey. I find it quite illuminating. Now the questions: * the #1 solution below (based on cumsum) is numerically unstable. Specifically if you do the runmean on a positive vector you can easily get negative numbers due to rounding errors. Does anyone see a modification which is free of this deficiency? * is it possible to optimize the

Full_Name: jarek tuszynski Version: 1.8.1 OS: windows 2000 Submission from: (NULL) (198.151.13.10) Example code: > a=array(1:27, c(3,3,3)) > apply(a,2, var) [,1] [,2] [,3] [1,] 1 1 1 [2,] 1 1 1 [3,] 1 1 1 [4,] 1 1 1 [5,] 1 1 1 [6,] 1 1 1 [7,] 1 1 1 [8,] 1 1 1 [9,] 1 1 1 > apply(a,2, mean) [1]

Hi, I am trying to write a package(A) for myself and need to use a function from another package(B) which is in R already(need to install it before use). Could anyone tell me how to implement that? Also I hope that my package gives an ERROR message(something like "STOP, please install package B first") if the package B is not installed yet. It is my first time to write a package. Thanks

Hi, I was lately debugging parts of my 'colAUC' function in caTools package, and in a process looked into other packages for calculating Areas Under ROC Curves (AUC). To my surprise I found at least 6 other functions: * wilcox.test * AUC from ROC package, * performance from ROCR package, * auROC from limma package, * ROC from Epi package, * roc.area from verification

Hi, I am looking for a way to search a file for position of some expression, from within R. My current code: sha1Pos = gregexpr("<sha1>", readChar(filename, file.info(filename)$size))[[1]] Works fine for small files, but text files I will be working with might get up to Gb range, so I was trying to accomplish the same without loading the whole file into R. I realize this is