similar to: directory/filename completion

I've noticed a change in the way grep() behaves between the 1.9.0 release and a recent R-patched. On 1.9.0 I get the following output: > x <- dget(file = url("http://www.biostat.jhsph.edu/~rpeng/names.R")) > length(grep("^l\\w+tmean", x, perl = TRUE, value = TRUE)) [1] 84 And on R-patched (2004-06-11) I get > x <- dget(file =

Are the functions 'R_Unserialize' and 'R_InitFileInPStream' allowed to be used in R packages? I guess I'm just not clear on the implications of this comment in 'Rinternals.h': /* The connection interface is not yet available to packages. To allow limited use of connection pointers this defines the opaque pointer type. */ I have a function in the

Since compiling R 2.5.0 from source on my Mac (PowerBook) I've noticed some strange behavior when plotting. I'm not sure if it's a problem with my setup/compilation because I feel like a problem as basic as this one would have been reported already. I'm running R with X11 and R was built with gcc 4.0.1. Basically, I run > plot(0, 0) > dev.off() X11 4 Warning message:

--KsGdsel6WgEHnImy Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit Hi, people. Wandering in R archives, and seeing the message attached below, I noticed that: mapply(rep,times=1:4, MoreArgs=42) still segfaults on R 2.2.0, and thought I should be a good citizen and report it, even if I do not have an actual problem

When I build R-devel (or the alpha snapshots) on a system without makeinfo >= 4.7, I get a warning about not being able to build HTML/Info help pages after running 'configure' (but 'make' runs smoothly and there are no errors). However, when I run 'make install' I get an error, something like make[2]: Entering directory

I've noticed what I think is curious behavior in using 'sub(fixed = TRUE)' and was wondering if my expectation is incorrect. Here is one example: v <- paste(0:10, "asdf", sep = ".") sub(".asdf", "", v, fixed = TRUE) The results I get are > sub(".asdf", "", v, fixed = TRUE) [1] "0"

As far as I can tell, 'isOpen' cannot return FALSE in the case when 'rw = ""'. If the connection has already been closed by 'close' or some other function, then isOpen will produce an error. The problem is that when isOpen calls 'getConnection', the connection cannot be found and 'getConnection' produces an error. The check to see if it is

In R 1.9.0 on Solaris/Sparc when I run, for example, install.packages("gregmisc", "~/R-local/lib"), instead of installing the `gregmisc' package in the directory /users/student/rpeng/R-local/lib the package gets installed in /users/student/rpeng/\~/R-local/lib, so the directory \~ is created in my home directory. This doesn't happen to me on Linux or Windows so I

On Fri, 12 Mar 2004 11:44:14 -0500, "Roger D. Peng" <rpeng@jhsph.edu> wrote : >Funny, it works for me on R-patched > > > f <- function(a) { return(log(a)) } > > f("A") >Error in log(x) : Non-numeric argument to mathematical function > > traceback() >2: log(a) >1: f("A") > > try(f("A")) >Error in log(x) :

I've noticed recently that 'update.packages' and 'install.packages' seem to not do tilde expansion anymore, i.e. when I run update.packages("~/R-local/lib") on R-alpha (r41043) I get the message /home/rpeng/install/R-alpha/lib64/R/bin/INSTALL: line 304: cd: ~/R-local/lib: No such file or directory and the package is subsequently installed in the current working

rpeng@jhsph.edu wrote: > I get different behavior on Linux: > > system("mkdir newdir") > dir("newdir", all.files = TRUE, recursive = TRUE) ## R hangs The point is that all.files=TRUE implies returning also "." and ".."! Hence the recursion uses to be infinite (from "." to "." to "." ......). If recursiv = TRUE,

cut.Date and cut.POSIXt indicate that the breaks argument can be an integer followed by a space followed by "year", etc. but it seems the integer is ignored. For example, I assume that breaks = "3 months" is supposed to cut it into quarters but, in fact, it cuts it into months as if 3 had not been there. > d <- seq(Sys.Date(), length = 12, by = "month") >

The 'cacher' package contains a set of routines for caching statistical analyses. The idea is that an analysis stored in a file (say, 'foo.R') is run and the results of the evaluated expressions are cached in a database. These cached results can subsequently be packaged up and distributed over the interweb. I've just uploaded to CRAN version 0.1-2 of the 'cacher'

The 'cacher' package contains a set of routines for caching statistical analyses. The idea is that an analysis stored in a file (say, 'foo.R') is run and the results of the evaluated expressions are cached in a database. These cached results can subsequently be packaged up and distributed over the interweb. I've just uploaded to CRAN version 0.1-2 of the 'cacher'

Hi (Roger), I saw the announcement of filehash v2.0 and the sentence "This development has lead to better file locking for concurrent access and faster reading and writing of data in general" caught my attention. What kind of file locking do you refer to here? I am looking for a mechanism that can be used to lock files for reading and/or writing, and I'd love to have a cross

I have written a function to plot data which will be used for various different chemistries. A simplified version is: plot_data <- function(risk,levels,chem,sd2,measure){ plot(risk, levels,main=paste ("per", sd2, measure, "\n in usual", chem)) } The problem is with the title. This works fine if the variable "chem" is just text, but if it is an expression then

I have modified the parameters for a function (for my own use) in the stats package, but I assume I need to update the parameter set in another file as I'm getting the following error when I run R: The compile works fine so I assume there is a configuration file in the base package of R that needs modification. Error in parse(file, n, text, prompt) : syntax error on line 11102 Error:

Windows 7 (local computer) Windows server (server I am trying to reach) I need to read a file whose windows path is of the form \\Theserver\mydirectory\data.csv You will note that as per windows standards the server name is preceded by two backslashes. I am not sure how to specify this in R. One usually needs to specify an escape characters in a path new which would suggest my path should

All, Does anyone know if there is an option I can set to turn screen-buffered output on and off with the win32 rgui? (Apart from the point and click method). I am running some simulations where it is useful to watch output but it gets mildly tiresome having to manually switch things on and off via the gui. Thanks Toby. > version _ platform i386-pc-mingw32 arch

I was sitting in the coffee room at work listening to people complain about a recent seminar about nanotechnology using the terms nanofluidics, nanofactory, nano-this, and nano-that ... I found myself thinking "well the speaker should just have said with(nano, ...) Un(?)fortunately there's no-one here I can share that thought with. -- 620B Bartram Hall