similar to: R.dll Reference Guide?

I'm trying to get a reference to this object in C SWX.RET[1:6,c("SBI,"SPI","SII")] While i am able to access and use a plain SWX.RET object, I'm getting confused on how to create an object with the array subscripts like above. Here is what I tried to do. It doesn't work because "[" is obviously not an operation or function on SWX.RET. So how do I

For embedded projects, one may want to eliminate the per-session temp directory created by InitTempDir() and just use a system-specific temp directory. Here's my solution: extern char *R_TempDir; void my_InitTempDir() { char *tmp; if (R_TempDir){ if (rmdir(R_TempDir) != 0){ perror("Fatal Error: could not remove R's TempDir!");

Hi, I think this is a bug (even though I can't find documentation explicitly saying that it should work). Basically, Rf_PrintValue(obj) fails when 'obj' is an S4 object that should be printed using show() rather than print(). From the error message I'm guessing that the need to use show is detected correctly but then show is not found. "cbind2" in the code below is just

Hello, I'm trying to make my Java application work with R, which involves sending and retrieving data and to run R functions from within the Java application. I also need to have "live interaction" with R, to show the R console output (e.g. warnings and print) and to enable the user to enter input when a function asks for it. Therefore I created a simple R console in Java using JRI

Hi all, I am using R-3.0.1 under Linux platform to embed R into my C++ code. I am facing an error while executing more than 1 R-expressions parallelly. I am executing round(X) and abs(X) parallelly on a set of 50 input rows which resulted in segmentation fault after getting the following errors. Error: unprotect_ptr: pointer not found Error: argument to 'findVar' is not an environment

Hi I'm trying to implement something similar to the following R snippet using C. I seem to have hit the wall on accessing class slots using C. library(fPortfolio) lppData <- 100 * LPP2005.RET[, 1:6] ewSpec <- portfolioSpec() nAssets <- ncol(lppData) setWeights(ewSpec) <- rep(1/nAssets, times = nAssets) ewPortfolio <- feasiblePortfolio( data = lppData, spec = ewSpec,

Hi all, I am a PhD student and I am working on a C project that involves some statistical calculations. So, I tried to embed R into C, in order to call R functions from a C program. My program seems to get the correct results from R. However, it appears to have a lot of memory allocation issues, in contrast to the small amounts of memory that my code allocates. Some additional info

I'm searching for answers to four questions (I've been searching the net for hours...) In Windows XP, is it possible to call R functions from a c program? (I've found examples for Linux/Unix but not Windows) If so, is there a simple example to get started using gcc with R-2.10.0? If so, is it possible to write a simple interface using a c dll to call R functions from a Visual

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 =

Dear all, I've written a R to python/octave/r translator that (so you can call python from R etc and vice versa) enabling you to e.g. call matplotlib which just runs fine on the first command when I do Rf_initEmbeddedR(2, argv); Rf_endEmbeddedR(0); Rf_initEmbeddedR(2, argv); Rf_endEmbeddedR(0); I get this error Error in .Call("R_isMethodsDispatchOn", onOff,

Hello, I am new to this list. ?I am trying to compile the current svn version of kdeedu on an amd64 linux machine ?which uses R and I get the following compiler output. ------------------------------------------- ?79%] Building CXX object cantor/src/backends/R/rserver/CMakeFiles/cantor_rserver.dir/rserver.o $SOURCES/kdeedu/cantor/src/backends/R/rserver/rserver.cpp: In member function

In reading this blog post: http://blogs.sun.com/bobn/entry/taking_zfs_deduplication_for_a a question came to mind..... To understand the context of the question, consider the opening paragraph from the above post; Here is my test case: I have 2 directories of photos, totaling about 90MB > each. And here''s the trick - they are almost complete duplicates of each > other. I downloaded

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 am trying to use the R API to call optim functions (nmmin, vmmin, lbfgsb, etc.) through a C program but I couldn't find the shared library to link under the R-2.6.0 build which is compiled under Linux (REL5). main.cpp:35: undefined reference to `Rf_initEmbeddedR(int, char**)' main.cpp:41: undefined reference to `nmmin' Thanks in advance for any help. ------------------------

Hi All My C++/linux program uses Rf_initEmbeddedR to start R and then calls some R functions. Now I try to port it to Windows. Give the fact that Rf_initEmbeddedR is missing in Windows, I try to use the implmentation in Rserve by Simon Urbanek. When I build in MS Visual Studio, I get the following linking error error LNK2019: unresolved external symbol __imp__putenv referenced in function

Dear All, I'm linking R from another application and embedding it as described in the R-exts manual, i.e. with initialization done via Rf_initEmbeddedR. While everything works the same as in standalone R for Linux, under Windows I found a difference in the default memory.limit, which is fixed to 2GB (both win32 and win64) - compared to a limit in standalone R of 3.5GB for win32 and 16GB on

I was debugging a problem reported to me regarding PL/R, and found that I can duplicate it using only R sources. It might be characterized as possibly a misuse of the findFun() function, but I leave that for the R devel experts to decide. The below results are all with R-2.5.1 (I can't seem to download r-patched at the moment, but didn't see anything in the 2.5.1-patched release

Hi. I would like to know how to start an embedded R session, and avoid datasets and the standard library packages to be loaded on startup. I've been looking at littler's code (so this is partly a question to Dirk Eddelbuettel...): > /* We don't require() default packages upon startup; rather, we > * set up delayedAssign's instead. see autoloads(). >

i'd like to use the C interface to R in a program i'm writing. as a starting point, i'm trying to create a very simple C program that uses R. i've read the R documentation on this, but i'm having trouble figuring out where SEXP is defined and how to use it. i noticed someone else on this list also tried to use the C interface, but they ran into similar problems:

...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) >