similar to: Packages w/ S4 classes in C?

Hi R users, I have been trying to install and use RMySQL on Windows98 for MySQL3.23.55-max using the pulldown menu. I am getting the following errors. I read the doc and some archived mails about a similar problem on unix like systems. Still can't get it to work. Some info below that may indicated where the problem is: * The directory RMySQL\libs is empty---I was not expecting this. *

Can a single random number be generated in R? I have an exercise that wants to simulate coin tosses, and I cannot seem to find a good example of the use of random number generation in R. Any help? Joshua Gramlich Chicago, IL

Is anyone using R with postgres? I'd like to do so, but cannot seem to find any reasonable explanation of how to do so. Joshua Gramlich Chicago, IL

Hello ... With a new checkout of R-devel, I'm getting the following error on startup: Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for a HTML browser interface to help. Type 'q()' to quit R. Error in open.connection(con, "rb") : unable to open connection In addition: Warning message: cannot open compressed file

Is there a way to edit user defined functions once they've been created? For instance, I've a simple function that plots a table, but I'd like to go back and add more parameters to the barplot call. Is there a way to change this function without completely starting from scratch? Other than storing the code in a file and re-running it? Joshua Gramlich Piocon Technologies Chicago,

Hi there, Does anyone know how to predict ARMA? It doesn?t have either predict or forecast methods. I found couple of packages called fbasic and fseries at http://www.itp.phys.ethz.ch/econophysics/R/, which has ?arma.predict? in it, but it doesn?t seem to be working. Any help in this regard would be appreciated. Thanks in advance. Regards Skanda Kallur "Prediction is very difficult,

Hello ... I went to build R-devel today (Redhat Linux 7.2, kernel 2.4.9-31, gcc 2.96) and am getting this error: gcc -I../../src/extra/zlib -I. -I../../src/include -I../../src/include -I/usr/local/include -DHAVE_CONFIG_H -D__NO_MATH_INLINES -mieee-fp -g -O2 -c pcre.c -o pcre.o pcre.c: In function `do_pgrep': pcre.c:71: parse error before `char' pcre.c:72: `s' undeclared (first use

I'm not really looking for working configurations as much as I am looking for people who can say "This is a solid product and I trust my business to a solution running Asterisk." As far as pre-sales work... Well, tell that to my consultant. I'm quite excited about *. I've got my company sold on it, they just want some reassurance that it's ready for prime-time

I think this may be a histogram, but I'm not sure. Can anyone tell me how to replicate this graph in R? http://www.ginworks.com/images/multitot.gif Thanks, Joshua Gramlich

Hello. I once read somewhere that it's possible to limit SSH pubkeys to 'tunnel-only'. I can't seem to find any information about this in any of the usual places. I'm going to be deploying a few servers in a couple of days and I'd like them to log to a central server over an SSH tunnel (using syslog-ng) however I'd like to prevent actual logins (hence

I initially thought this only was the case for me on R-devel, but also just tested it on the current R-patched and R-2.1.1 (so perhaps this more belongs on R-help, but ...). I'm having an odd error with the makefiles in src/library/XXX while building R. When it tries to create the 'po' directory, the Makefile specifies: @if test -d $(srcdir)/inst/po; then \ $(MKINSTALLDIRS)

Hello, I got a rather simple question: Can I find somewhere in R the significance values for a Kolmogorov distribution (I know the degrees of freedom and I have already the maximum deviation). ks.test is not really doing what I want. All I need is the values, like one can get the values for a chi-squared distribution by 'qchisq(0.05, 375)'. tnx, Kurt.

I don't suppose it's possible to create a pie chart in R? I've got 1500 some odd elements in a frame that are valued at either -1, 0 or 1 and I'd like to find a reasonable way to represent the distribution graphically...any ideas? Joshua Gramlich Piocon Technologies Chicago, IL

Up to now, writing an S4 class that extends an S3 class (using contains= in the call to setClass) has been discouraged for two main reasons: 1. You can't say anything formal about S3 classes, so validating objects, having formal slots for their properties, etc. are not generally feasible. 2. In any case, the S3 class, which may have multiple strings in the class attribute, was not

Dear list, is it possible that method dispatch checks for superclasses/virtual classes before checking "ANY"? I'd like to build a generic initialization method for all my Reference Class (say "MyDataFrame") objects by having them inherit from class, say "MyRefClassVirtual" (which would have to be a virtual S4 class; there are no virtual Reference Classes,

Hello ... With a new checkout of R-devel (last update was 2003-09-11) we are having a problem (it seems to be happening to all of us here on a few different machines) where during install/check/etc when the 'save image' happens (in packages using 'save image'): ** save image Error: couldn't find function "setClass" Execution halted This is for all packages that

Hello ... Using Win2K (and reportedly WinXP), when the length of the 'url' string >= 280 characters, a segmentation fault occurs. This doesn't seem to be affecting unix machines. Thanks -J

Hello ... I see that on Windows one can specify a filename as the "pkgs" argument and then set CRAN=NULL when calling install.packages() for a local file. Is there a way to do this on unix? It doesn't appear to be possible, but perhaps I am missing something here. Also, if indeed there is no method to do this on unix, is there a reason behind it or has it just never been

Hi is there a list of all roxygen tags which are available? I couldn't find them. I am asking specifically towards the use of roxygen in documenting S4 classes - is that implemented yet (i am using roxygen 0.1 from CRAN at the moment)? Thanks Rainer -- Rainer M. Krug, Centre of Excellence for Invasion Biology, Stellenbosch University, South Africa

Hi, we are about to update some class definitions in our distrXXX family of packages, so I would be eager to know whether there are plans in R Core to implement some version management tools for S4 classes as described in section 7.4 in JMC's "Green Book". In his recent book (continuing the color scheme, is it to be called the "Yellow Book"? :-), this topic has not been