similar to: Command-line history not working...

Dear all, I can't see how setGeneric() works. I know perfectly well how to define library(methods); setClass("Square", representation(side="numeric")); # Will become the default method. getArea <- function(object) { stop(paste("Method getArea() is not defined for this class:", data.class(object))); } setMethod("getArea",

Dear all/anyone, after generating a HTML file "result.html" from within [R], I would like to open the default HTML browser (like help.start() does) to show the file. Is it possible to do this (without trying to do a system dependent search for possible browsers)? I browsed the source of package 'base' (R v1.4.1 WinMe) and I found the following in help():

Hi (again), let's say I want to create a class Matrix that extends the class matrix, but I can't get it to work. I define the class as > setClass("Matrix", "matrix") > getClass("Matrix") No Slots, prototype of class "matrix" Extends: Class "matrix" directly. Class "structure" by class "matrix".

Hi, I am trying to find the fastest way to "find the last index k such that x[k] < y in a *sorted* vector x" These are my two alternatives: x <- sort(rnorm(1e4)) y <- 0.2 # Alt 1 k <- max(1, sum(x < y)) # Alt 2 "divide and conquer" lastIndexLessThan <- function(x, y) { k0 <- 1; k1 <- length(x) while ((dk <- (k1 - k0)) >

I might be wrong, but didn't the following work before R v1.4.x? R --vanilla > df <- data.frame(-10:10) > abs(df) Error in abs(df) : non-numeric argument to function I have tried this on both Rv1.4.1 on WinMe and Rv1.4.0 on Solaris 8. I regexp searched bugs.r-project.org on "abs" but I found nothing about this. I can't see why abs(df) shouldn't work when sqrt(df),

I might be wrong, but didn't the following work before R v1.4.x? R --vanilla > df <- data.frame(-10:10) > abs(df) Error in abs(df) : non-numeric argument to function I have tried this on both Rv1.4.1 on WinMe and Rv1.4.0 on Solaris 8. I regexp searched bugs.r-project.org on "abs" but I found nothing about this. I can't see why abs(df) shouldn't work when sqrt(df),

I raised the questions below a couple of months ago by sending it to the developers mailing list, but I don't know if it got through since no one replied to it. Looking at the [R] distribution, the UseMethod() is used in the following way: alias <- function(object, ...) UseMethod("alias") or barplot <- function(height, ...) UseMethod("barplot") What I

When loading a package with library(APkg) or require(APkg) I would like to make sure that (1) the correct version of [R] is installed. If not an informative error message should be given. I would also like to make sure that (2) another required package which is loaded from within the APkg package (by require(OtherPkg)) is of a certain version or later. First of all, I believe that the check

Where should the setClass() ('methods' package) calls be placed in a package? I try to follow a one-class-one-file principe, but since setClass("ClassA", "ClassB") has to come a after setClass("ClassB", [snip]) it is not possible to fully follow this rule. So the best I can do now is to put all setClass() calls in a file named "000.R" (I know this

I am investigating how well R/tcltk is supported on different system and I ran into the same problem as Christian Schulz reported on February 7, 2002. I am using [R] v1.4.1 on WinMe and ActiveTcl 8.3.2. Loading tcltk within Rgui works just fine and both demo(tkdensity) and demo(tkttest) works as expected. However, when I start R from my Cygwin terminal dyn.load() fails to load the library: % R

I use smooth.spline(x, y) in package modreg and I would like to get value of penalized log likelihood and preferable also its two parts. To make clear what I am asking for (and make sure that I am asking for the right thing) I clarify my problem trying to use the same notation as in help(smooth.spline): I want to find the natural cubic spline f(x) such that L(f) = \sum_{k=1}{n} w[k](y[k] -

Full_Name: Henrik Bengtsson Version: 1.3.1 OS: Sun Solaris 8 Submission from: (NULL) (130.235.3.49) I have been trying to install [R] v1.3.1 locally on a Sun Solaris 8 machine and I ran into the (already known) perl problems that express theselves as: Bare word found where operator expected at /usr/matcent/hb/R/R-1.3.1/share/perl/R/Rdconv.pm line 1390, near "$txtout mywrap"

Dear [R] people, I am looking for a method to test if there are any changes (jump points) in a time series data set or not. If there are, I would like to identify the jump points. All the data is available from the beginning so an offline method could be used. The current data set that I have could be seen as a time series with five almost equally sized segments that stands out to have different

I would like to define a function at run-time, but I just can't make it work (please don't question why I want to do this, because that would be too much to explain). For example, I want to define the the following function foo <- function(x) { cat("Function", "foo", "was called with argument", x, ".\n") } However, I would like to

Is there a weighted median function out there similar to weighted.mean() but for medians? If not, I'll try implement or port it myself. The need for a weighted median came from the following optimization problem: x* = arg_x min (a|x| + sum_{k=1}^n |x - b_k|) where a : is a *positive* real scalar x : is a real scalar n : is an integer b_k: are negative and positive scalars

Hello list, I''m newbie in this list. Well, i''m going crazy with ipp2p. Googling i find a mini-howto but i''ve got problems. 1) Download: * iptables-dev (apt-get) * kernel-headers-2.x.x (your kernel, "uname -r") * src of your iptables (iptables -V and apt-get source) * ipp2p-0.8.0.tar.gz (stable) 2) untar ipp2p and cd ipp2p 3) Edit Makefile, if it''s

Hello, Does anyone have cups v1.3.1 running on Centos5? If so, i'd like to roll my own srpm and install it. I'm currently running 1.2.x and want to update to 1.3.1 as it has a bug fix that i need. Any help appreciated. Thanks. Dave.

I'm frightfully new at developing r packages. I'm developing an econometrics package, and each time I update my beta package, I close R, delete the package dir in the library dir, rebuild the zip file, rerun R, reinstall the package and run the functions. Is there a more efficient way? Jeff. Jeff D. Hamann Hamann, Donald & Associates, Inc. PO Box 1421 Corvallis, Oregon USA 97339-1421

We've recently "upgraded" a server to solaris 8, and in reinstalling R I've encountered a problem in getting it to recognize the readline library. I have installed readline in what I believe to be the "usual" place: /usr/local/lib with include files in /usr/local/include/readline. But ./configure produces: ragnar.econ.uiuc.edu# grep readline hout checking for

hi every body. Im new in this program. Im traying to install R in linux suse10.0 in two following form: a) with the file R-2.5.0.tar.gz b) and the rpm file : R-base-2.5.0-2.1.i586.rpm ****** In the first case a) when i uncompressed and type: linux:/opt/R/R-2.5.0 # ./configure the followind message is showed linux:/opt/R/R-2.5.0 # ./configure checking build system type...