similar to: R_tryEval not properly documented in 'Writing R Extensions' (PR#9524)

On Thu, 22 Feb 2007, ellis at stat.harvard.edu wrote: > Full_Name: Byron Ellis > Version: 2.4.1 > OS: N/A > Submission from: (NULL) (75.55.126.10) > > > R_tryEval is implied to be in the public API by 'Embedding R in Other > Applications,' but not documented in 'Writing R Extensions.' This would seem to > be an oversight given the dependence of many

Hi all (especially R-core) I suppose, With the introduction of the new functional programming functions into base I thought I'd ask for a Curry() function. I use a simple one that looks this: Curry = function(FUN,...) { .orig = list(...);function(...) do.call(FUN,c(.orig,list(...))) } This comes in really handy when using say, heatmap():

Has anyone taken a shot at a Cairo graphics device yet? I half expected to see one on either Paul's pages or Omegahat. :-) --- Byron Ellis (ellis at stat.harvard.edu) "Oook" -- The Librarian

Hello folks, I'm embarking on a project to embed R into the Apache web server, and I'd like your help. Currently, I'm looking for a way for R code to call back into a shared library from which the R shared library was loaded. Essentially, apache starts and loads mod_R.so which runs an initialization routine which calls Rf_initEmbeddedR() and the following code: /* override to

> ---------- Forwarded message ---------- > From: Byron Ellis <ellis at stat.harvard.edu> > If we wanted to be truly radical we'd just accept that graphics > devices and event loops are just special cases of the connection and > merge the whole thing, thus more-or-less reinventing CLIM. :-) Eventually, all programming languages grow up and become Lisp. (progress,

Some quick questions about S4 methods. Does the typing of S4 methods mean that lazy evaluation is no longer possible? It seems that you would need to evaluate the arguments to determine their type at dispatch. Second, what role, if any, do default arguments play in S4 methods? I notice that you can put default arguments into generics but that the dispatch is still done on the type of the

Full_Name: Byron Ellis Version: R 1.9.0 (and 2.0.0) OS: Linux (Redhat Fedora Core) Submission from: (NULL) (140.247.241.197) It appears that `R CMD build` cannot handle spaces in the path when building packages for distribution. For instance: [ellis@net-78815 ~/Bayesian Networks]$ R CMD build bnsl * checking for file 'bnsl/DESCRIPTION' ... OK * preparing 'bnsl': * cleaning src *

Full_Name: Byron Ellis Version: 2.1.0 OS: OS X Submission from: (NULL) (67.124.246.46) > x = charToRaw("12345") > x [1] 31 32 33 34 35 > save(x,file="x.Rda") > rm(x) > load("x.Rda") > x [1] 00 00 00 00 00 Thats no fun.

Hello. I'm currently working on the OCaml-R binding allowing to call R code from Objective Caml. As Objective Caml is a functional language, I'd like the binding to be as 'functional' as possible. Specifically, this means that I'd like using the R_tryEval function and all related entry points in libR.so. I've had a look at R-exts.pdf, but R_tryEval is not documented.

Hi all, I'm having a problem with some sort of interaction with try() and methods, I think. The setup is as follows, I have an S4 class that holds an environment and I would like to evaluate the right hand side of a function inside that environment. No problem there. However, if the formula involves a symbol that doesn't exist, which may or may not happen, it fails as it should and

Is the anonymous CVS repository for R presently broken? There haven't been many updates coming through and the repository files seem to differ significantly from the rsync version of R-devel... Byron Ellis (bellis@hsph.harvard.edu) "Oook" - The Librarian Please finger bellis@hsph.harvard.edu for PGP keys

Full_Name: Byron Ellis Version: 2.8.0 OS: Linux Submission from: (NULL) (64.124.65.175) There is a missing ';' just above platform.c:1661 on the line "X11 = FALSE" that causes compilation errors when X11 libraries are not being used.

Full_Name: Byron Ellis Version: 1.2.3 OS: Windows 2000 Server Submission from: (NULL) (140.247.105.95) In Rgui when attempting to resize the console the system locks for a second (cursor locks up, etc) and then either returns to normal for a second before crashing or just crashes when we start moving again (the former happens more often when making things bigger, the latter when the console is

For the last, I dunno, week or so I've been unable to build R... I finally took the time to investigate and the crash is in building 'methods': all.R is unchanged ../../../library/methods/man/methods.Rd is unchanged make[2]: `Makedeps' is up to date. ../../../../library/methods/libs/methods.so is unchanged make[1]: Nothing to be done for `Rfiles'. Any clues to where this

Hello, I've been playing around w/ the new dynamic C symbol stuff (thank you for doing that!) in the, um, 5/11/01 R-devel package and, unless I've missed something incredibly obvious, there doesn't appear to be a mechanism for registering functions of an embedding executable. It seems like this would be a Good Thing to have. Since I'm doing most of my work in Windows at the

Full_Name: Byron Ellis Version: 1.2.2 OS: all Submission from: (NULL) (140.247.105.95) R_ext/Arith.h #ifdef MAIN #define extern #endif #ifdef __cplusplus extern "C" { #endif these two should be reversed. Its never a problem because builds aren't done against C++ compilers, but its still an error (just a low priority one). also, you could change that to #ifdef __cplusplus extern

...at least I think that is what happens, at least on some configurations. Here's a repeatable example: cd R_HOME/tests/Embedding touch tmp.R make tryEval and then (correct) > ./tryEval --slave Error in sqrt("") : Non-numeric argument to mathematical function Caught an error calling sqrt(). Try again with a different argument. [1] 3 versus (non-interactive; no return) >

So, consider the following: > example(glm) > g = function(model) { w = runif(9);glm(model,weights=w); } > g(counts ~ outcome + treatment) Error in eval(expr, envir, enclos) : object "w" not found Huh?! I suspect that somebody is lazily evaluating arguments in the wrong environment (probably GlobalEnv in this case). I'm willing to accept the fact that there's

Thanks Byron, I assume you use new Devel Tool updates and nothing from fink? Can other people with new dev tools check this (for example Jan?) It would be nice to update the instuction page (and R-admin in the future) some general notes: 1. there is no need to configure with --without-x as X11 can now be used from inside RAqua 2. please use R-devel and not R-Sig-Mac as we will soon close this

Is there any way to distinguish between an error and a user interruption in R_tryEval? In both cases the ErrorOccurred argument is set to 1. For my application I need a different action in case of a SIGINT. >From the source code I infer that R_tryEval basically wraps eval in R_ToplevelExec, which returns TRUE if fun returns normally, FALSE if it results in a jump to top level. However both an