similar to: Splitting vector into individual elements

On Sun, 11 Jul 2004, Gabor Grothendieck wrote: > search.path <- > function(fn, > paths = strsplit(Sys.getenv("PATH"), split = ";")[[1]], > fsep = "\\") { > for(d in paths) { > f <- file.path(d, fn, fsep = fsep) > if (file.exists(f)) > return(f) > } > return(NULL) > } >

Anyone aware of tools available that can provide complexity metrics and/or code coverage analysis for R source? ---------------------------------------------------------- SIGSIG -- signature too long (core dumped)

Is there a canonical means to apply a function over multiple arrays simultaneously? For example, if I wanted to plot each line with a different color? Or is a for loop conversion my best option? x <- seq(0, 8, by = 2) y <- matrix(1:15, nrow = 5, byrow = TRUE) my.colors <- heat.colors(3) drawLines <- function(row) { lines(x, row) # want corresponding 'my.colors' here }

R 2.1.0/src/include from 2005/04/18 download Naming inconsistent for guards as well but that's pedantic. Simple convention: file <foo.h> #ifndef R_FOO_H file <R_ext/bar.h> #ifndef R_EXT_BAR_H Missing guards: <IOStuff.h> <Internal.h> <Parse.h> <R_ext/GraphicsBase.h> <R_ext/GraphicsDevice.h> <R_ext/GraphicsEngine.h>

Had been looking into Luke Tierney's R_AllocatePtr() and was left with a question about exactly when does R reclaim heap memory. Implication of 'simpleref.nw' is that one can allocate C data on the R heap, and as long as pointer object is alive, the data and pointer will remain valid. But it calls allocString() which is implemented using R_alloc(). 'Writing R Extensions" says

I'm translating some Matlab code and need some help figuring out how to change this call into an S4 generic method. In matlab, there's a function called 'repmat' with three calling sequences (all I have to deal with anyway): 1) B = repmat(A, m, n) 2) B = repmat(A, [m n]) 3) B = repmat(A, n) In all cases, A is the fill value, m is number of rows, and n is number of

I want the equivalent of this 'C' declaration. enum StoplightColor { green = 3, yellow = 5, red = 7 }; This mostly works except the validity checking doesn't seem to occur automatically. What didn't I do to enable it? setClass("stoplightColor", representation(value = "integer"), prototype = integer(1))

Needed to redefine function "sum" for my MATLAB package. There's something similar in Chambers's Green Book (pg 351) so I modified it as such: library(methods) setGeneric("sum", function(x, ..., na.rm = FALSE) { if (nDotArgs(...) > 0) sum(c(sum(x, na.rm = na.rm), sum(..., na.rm = na.rm))) else standardGeneric("sum") })

Hi, I'm trying to get C code working with R. This is my first time writing C on Windows and I'm making a mess of it. Help! I'm following the example in Roger Peng's "An Introduction to the .C interface to R". The C code is: #include <R.h> void hello(int *n){ int i; for(i=0; i < *n; i++) { Rprintf("Hello, world!\n"); } } I seem to be unable

Hallo, does a package for Matlab exist in R? If yes, where can I find it and how can I install it under R? Thanks, Corinna

Based on reading 'rgb' documentation, I would have thought the following would have produced identical results. Can someone explain how to make this happen? I need to be able to specify an array of rgb values for the 'col' parameter. colnames.col <- c("black", "red", "blue", "green") colnames.rgb <- apply(as.matrix(colnames.col), 1,

Does anyone know if Hastie's gene shaving method is implemented in R Thanks, Aimin

Hi Kevin, >>>>> "krc" == krc <krc at odin.mdacc.tmc.edu> >>>>> on Mon, 27 Jun 2005 21:55:37 +0200 (CEST) writes: krc> Full_Name: Kevin R. Coombes krc> Version: 2.1.0 krc> OS: Windows XP krc> Submission from: (NULL) (143.111.224.169) krc> When revC = TRUE and RowSideColors is set to a list of krc>

How would one go about getting sprintf to use the values of a vector without having to specify each argument individually? > v <- c(1, 2, -1.197114, 0.1596687) > iv <- c(3, 1, 2, 4) > sprintf("%9.2f\t%d\t%d\t%8.3f", v[3], v[1], v[2], v[4]) [1] " -1.20\t1\t2\t 0.160" Essentially, desired effect would be something like: >

Can the value of a list element be referenced from a sibling list element during list creation without the use of a temporary variable? The following doesn't work but it's the general idea. > list(value = 2, plusplus = $value+1) such that the following would be the output from str() List of 2 $ value : num 2 $ plusplus: num 3

Wish to install a local source package on Un*x platform from within R. Same thing as I can accomplish from cmdline as $ export R_LIBS=~/R/library $ cd /path/to/pkg $ R CMD INSTALL -l $R_LIBS <pkgname> So, how do you go about this anyway? And isn't this a bug in 'install.packages'? ------- $ R R : Copyright 2004, The R Foundation for Statistical Computing Version 1.9.0

Hi, Is there a way to turn off the automatic inclusion of "./" at the beginning of a path specified in an \SweaveInput{} instruction? I'd like to create some reusable "template modules" of Sweave code and put them in a standard directory like /Resources/Affymetrix Then the corresponding file that uses one of these would include a command like

What's the best way to simulate Recall for parent function? Consider this one-time recursive code: alwaysEven <- function(x) { handleOdd <- function(x) { alwaysEven(x-1) # use Recall-like here } return(if (x %% 2) handleOdd(x) else x) } any2even <- alwaysEven rm(alwaysEven) any2even(3) ---------------------------------------------------------- SIGSIG --

On Mon, 6 Feb 2006 18:12, Simon Urbanek wrote: > On Feb 6, 2006, at 5:24 PM, Paul Roebuck wrote: > >> Tried on R-Sig-Mac with no responses, but I need some kind >> of answer. >> [...] >> Does the following work on your system? > > Interesting, no, it doesn't either. For png and pdf I use > Quartz + quartz.save (it produces much nicer results) so > I

Was looking at what was output for <pkgname>-package.Rd and wondered if any there was any means (via macro, etc) to merge some of the same information with a template for my package manpage? As much (all?) of the generated information was already provided in the DESCRIPTION, I'd prefer not to have to update the information in multiple places. I'm thinking here that I could provide a