similar to: problem with findFun call from embedded R

I'm using: R 2.15.1 (beta), 2012-06-11, svn.rev 59557, x86_64-unknown-linux-gnu And I normally use: options("error"=recover) I recently ran into a problem where when my code called stop(), recover() was incredibly slow (hours) because it was trying to deparse an extremely large call. I worked around that by instead using my own recover function which avoids deparsing anything

Dear list, I have been using "findVar" (defined in src/main/envir.c) happily and would like to use "findFun". However I have trouble when the name searched cannot be found: while "findVar" returns R_UnboundValue, "findFun" does not (the 4 last lines of "findFun" are copied below). error(_("could not find function

Dear all, when working on a project with embedded R, I found out that R-2.0.0 causes a problem where older versions worked OK. Rf_findVar(...) causes the following error when used to find a generic function (such as print): fun = Rf_findVar(...); R_tryEval(fun, ...); Error in function (object, ...) : Invalid generic function in usemethod Alternatively, using Rf_findFun(...) seems OK in this

Hello R developers, Platform: Windows 2000. Compiler: GNU GCC - 2.95.2 (CRTDLL) I have a C function for evaluating commands using eval(SEXP,SEXP) which is included in a personal make of R.dll. (Similiar to R_Proxy_evaluate() in rproxy_impl.c) Using SETJMP to catch errors works but there is a problem. For example, the following code: if (SETJMP(R_ToplevelContext->cjmpbuf)) //

Dear All, I've read the manual on "Writing R Extensions" and in particular the part on calling R from C. (Most of the manual is about calling C from R, not the other way around.) The good news is that I can now call _some_ R from C, specifically the R functions which have C header files. However it isn't clear to me how to call R functions that are written in R. I

hello,Everyone! I am a freshman to use R. Can anybody tell me where has scor function which achieves the skipped correlation? Thank you very much! Bset wishes! Jiaolong Qin [[alternative HTML version deleted]]

I have a pdf file that I would like to parse into R: http://www.williams.edu/Registrar/geninfo/faculty.pdf For now, I open the file in Acrobat by hand, then save it "as text" and then use readLines(). That works fine but a) I am concerned that some information may be lost and b) I may be doing this a lot, so I would rather have R grab the information from the pdf file directly. So: is

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, Is the below -- setSeed -- an okay way to set the seed in standalone applications making use of Rlib? It seems to work as expected. Is there a better way to do it? (I'm also looking at do_setseed but am unsure what to supply as op. findFun("set.seed", R_GlobalEnv)?) Thanks much. -- David Faden, dfaden at iastate.edu AIM: pitulx -- #include <assert.h> #include

Along with getting pqR to work on Windows, I've also been testing it in the context of embedded R, and in the process have found some problems with the examples given of embedded R use. One problem can be seen in R_ReplDLLinit, in src/main/main.c: void R_ReplDLLinit(void) { SETJMP(R_Toplevel.cjmpbuf); R_GlobalContext = R_ToplevelContext = R_SessionContext = &R_Toplevel;

So I'm working on a custom front end to R, in one mode of the front end I dynamically load libR.so into a child worker thread. I'm very careful to make sure it is loaded by a single thread and loaded only once, but since it is a child thread it violates assumptions made by the stack size checking inside of R and I get innumerable errors along the lines of Error: C stack usage

I have an object with an attribute "tframe" for which there is a generic method print.tframe and also a method print.tframe.default defined in a library. However, when I use attributes(object) I get the message $tframe Error: couldn't find function "print.tframe" It's as if <primitive: attributes> is not looking through the search list? Any suggestions?

Hello All, If I refer to a variable 'x', 'x' will be searched in the current frame or the parent frame, or the parent of the parent frame, etc., until it is found (or not found at all)? Could you please show me what code in R source that handles this? Is it in the C code or the R code? Thanks, Tom

Hi, forget about the below details. It is not related to the fact that the function is returned from a function. Sorry about that. I've been troubleshooting soo much I've been shoting over the target. Here is a much smaller reproducible example: x <- 1:10 y <- 1:10 + rnorm(length(x)) sp <- smooth.spline(x=x, y=y) ypred <- predict(sp$fit, x) # [1] 2.325181 2.756166 ...

I am wishing to write my own random distribution simulation function using C programmin language(for speed) via R. I am familiar with R programming but somewhat new to C programming. I was trying to understand "Writing R extensions" -guide and its part 6.16, but I found it hard to understand(http://cran.r-project.org/doc/manuals/R-exts.html#Standalone-Mathlib). I also tried to get

I am compiling the Embedding examples in the tests directory and get an undefined reference. I include the make output as well as grep'd output of nm on libR.so and compiler and arch information. Do I have an improperly built R shared library or is there a problem with the Embedding tests or something else I am not seeing? Thanks for any help! George ost at

Dear List, I'm building an R syntax highlighting file for GeSHi [*] for a website I am currently putting together. The syntax file needs a list of keywords to highlight. How can I generate a list of all the functions in a base R installation? Ideally the list would be formatted like this: "'fun1', 'fun2', 'fun3'" when printed to the screen so I can copy

Hi all, I have a problem of Rf_initEmbeddedR function. I've tried with: try { int Argc1 = 1; char *Argv1[] = {"Rtest_1"}; int Argc2 = 1; char *Argv2[] = {"Rtest_2"}; // Init R(first) Rf_initEmbeddedR(Argc1, Argv1); // R package load SEXP e = R_NilValue; SEXP r = R_NilValue; PROTECT(e =

Simon, Ah, thank you! quiet right. For anyone searching for this in the future, I changed my init fuction to: ---------- SNIP ---------------- void init_r() { SEXP aperm_function; /* this is our version of Rf_initEmbeddedR where we disable stack checking */ const char *init_argv[] = {"MyFront", "--vanilla", "--slave"}; Rf_initialize_R(sizeof

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