similar to: RInside & child threads

Displaying 20 results from an estimated 900 matches similar to: "RInside & child threads"

2010 Mar 22
3
Embed R code in C++
Hi, Can anyone tell me how to embed R code in a C++ file. I am actually using a mac running on the OSX 10.6.2 and the IDE Xcode Version 3.2 and I would like to embed the basic function like geometric, binomial, normal and hyper geometric distributions in a sample cpp file. I heard about the library RInside and i have downloaded the source code for mac but i do not know how to build it in
2010 May 08
1
Error in RImageJ
Hello everybody, I'm running R under Mac OS 10.6.3 on a MacBook 2.16 GHz Intel Core 2 Duo. I've recently installed R 2.11.0 and the RImageJ library v. 0.1-142. When trying to follow the example given in the package manual and I get the following error: download.file( "http://www.google.fr/intl/en_en/images/logo.gif", dest = "google.gif" ) trying URL
2010 Apr 22
2
RUnit bug?
There appears to be a bug in RUnit. Given a testsuite testsuite.math, say, when I run: runTestSuite(testsuite.math) this works fine, provided there are no extraneous files in the unit test subdirectory. But if there are any Emacs temp files (with names that end with '~') then runTestSuite gets confused and tries to run functions from the temp files as well. [[alternative HTML version
2010 Apr 27
2
Resolving functions using R's namespace mechanism can double runtime
It appears that the runtime for an R script can more than double if a few references to a function foo() are replaced by more explict references of the form pkgname::foo(). The more explicit references are of course required when two loaded packages define the same function. I can understand why use of this mechanism is not free in an interpreted environment like R, but the cost seems rather
2010 Apr 28
2
JRI API: sourcing from Java String
Hi all, I have been using 'source(filename)' to load R code from a file object. However, now I have a special case where I don't have a file since I am loading an R script from a Jar file. I would like to avoid creating temporary files. Is there a way to use the 'source' command with a Java String? Are there any other, better ways to do that? Ralf
2010 May 11
2
make: Nothing to be done for `all'.
Hi, I just bought new macbook pro 10.6.3. I am trying to use some old c code that used to work. I tried to recompile the code. In the directory with code I used R CMD SHLIB hello.c and get the error make: Nothing to be done for `all'. I have tried reinstalling Xcode and R but I am still having this problem. Any suggestions? -- View this message in context:
2010 Mar 07
1
duplicate STRSXP : shallow copy ?
Hello, As this little program illustrates, duplicating a STRSXP does not seem deep enough. require( inline ) fx <- cfunction( signature( x = "character"), ' SEXP y = PROTECT( duplicate( x ) ); int n = LENGTH(x); int nc = 0 ; char* p = 0 ; for( int i=0; i<n; i++){ p = (char*)( CHAR( STRING_ELT( y , i ) ) ); nc = strlen( p ) ; for( int j=0; j<nc; j++){ p[j] =
2010 Apr 13
3
Inline Package: void vs return type functions
Dear all, After having a look at the "inline" package and also going through the "Rcpp" package which is tighty related to it, it came to me this question: 1) my C/ C++ code has a return type (let say a double[][] or a user define class) 2) I am working with an extensive library built by someone else and I don't have the time/knowledge to change it by means of working
2010 Mar 18
1
Creating Rcpp RcppDatetime from string with millisecond
Hi, I was trying to generate RcppDatetime from a string. The main problem for me is that my string contains millisecond. I saw that RcppDatetime takes in double of seconds since epoch. I try to generate a double using boost but has no success. I'm wondering if you have any sample snippet? The string looks like: "2010-03-18 15:50:51.232" Secondly, what time zone RcppDatetime is
2010 Feb 20
1
how to create a SEXP which could be accessed in embedded R
Hi all, I am not familiar with writing R extensions. In a C program, I want to create a SEXP and access it in embedded R. How to let the embedded engine know there's a new vector? For example, after creating a SEXP, parsing 'ls()' in embedded R and then evaluating, STRSXP returned will contain the name of the SEXP. Any help would be appreciated. Regards, Spiral [[alternative HTML
2010 Mar 03
1
Mentor for GSOC '10: Symbolic Regression in R
Hi all, I am looking to extend the regression and data analysis capabilities of R through Symbolic Regression that can potentially find implicit equation relationships in the input data. You can find my project proposal at: http://rwiki.sciviews.org/doku.php?id=developers:projects:gsoc2010:syrfr I am looking for a mentor to guide me through the summer on the project under the Google Summer Of
2010 Mar 30
2
Trouble in using rJava
Hello, I'm using rJava and JRI to call R scripts from my Java code, but my scripts are sometimes executed, and very often they don't run throwing a Java exception. I'm using a 2.7 version of R, with rJava 0.8.4 and Java Sun 1.6. Somebody can help me please ?? Thank you very much, Nabila
2010 Mar 02
1
Double Colors in Main
Dear All, Consider the following trivial code snippet rm(list=ls()) name_vec <- c("color1", "color2") pdf("test_color.pdf") plot(seq(5), seq(5), main=paste(name_vec[1]," and ",name_vec[2], sep="")) dev.off() What I would like to achieve is rather simple to explain, but it is giving me a headache: how can I have two colors in main? Let us
2010 Apr 21
2
suggestion how to use memcpy in duplicate.c
>From copyVector in duplicate.c : void copyVector(SEXP s, SEXP t) { int i, ns, nt; nt = LENGTH(t); ns = LENGTH(s); switch (TYPEOF(s)) { ... case INTSXP: for (i = 0; i < ns; i++) INTEGER(s)[i] = INTEGER(t)[i % nt]; break; ... could that be replaced with : case INTSXP: for (i=0; i<ns/nt; i++) memcpy((char *)DATAPTR(s)+i*nt*sizeof(int),
2010 Apr 29
2
Split a vector by NA's - is there a better solution then a loop ?
Hi all, I would like to have a function like this: split.vec.by.NA <- function(x) That takes a vector like this: x <- c(2,1,2,NA,1,1,2,NA,4,5,2,3) And returns a list of length of 3, each element of the list is the relevant segmented vector, like this: $`1` [1] 2 1 2 $`2` [1] 1 1 2 $`3` [1] 4 5 2 3 I found how to do it with a loop, but wondered if there is some smarter (vectorized) way
2010 Mar 19
1
Can't setup rJava under ubuntu
When I try to install rJava, I get the following error: > install.packages('rJava') ... checking whether siglongjmp is declared... yes checking Java support in R... present: interpreter : '/usr/bin/java' archiver : '/usr/bin/jar' compiler : '/usr/bin/javac' header prep.: '/usr/bin/javah' cpp flags :
2010 Mar 25
1
Error using Rcpp
Hi, Im not sure if this is the right place to post this. I am using Xubuntu Karmic Koala and am trying to use the Rcpp package. I am testing it using a simple code that takes in a vector and adds 1 to each element: #include <Rcpp.h> // This file takes in a vector and adds one to each entry RcppExport SEXP addone(SEXP vec){ // create a local copy of vec Rcpp::NumericVector
2010 Apr 17
1
Error message when trying to install Rcmdr
I am trying to install Rcmdr on my ubuntu machine, but keep getting the following error messages: ERROR: failed to lock directory ?/home/thedoctor/R/i486-pc-linux-gnu-library/2.10? for modifying Try removing ?/home/thedoctor/R/i486-pc-linux-gnu-library/2.10/00LOCK? ERROR: failed to lock directory ?/home/thedoctor/R/i486-pc-linux-gnu-library/2.10? for modifying Try removing
2015 Dec 11
1
Runtime error when run a RInside program compiled by intel c++ on windows
I have intstalled R-3.2.2,Rcpp-0.12.2,RInside-0.2.13 on windows. I compiled the example1 of RInside in the example directory which create a RInside instance and prints "hello world". The compiler is intel c++. I included the RInside source files in the project and fixed the compile and link errors. But when run the executable file it prints some error message and quites. I debug
2012 Dec 05
1
RInside, rcpp compilation problem
I have spent some hours browsing the RInside and rcpp documentation, lots of it; but ... as a programmer of C++ since 1990, on both Windows and Unix ... ( Solaris and Ubuntu, and Mandrake/Mandrivo Linux); I see a minor problem ...... Where is the rcpp.h header file?? The below code fails to compile as the RInside.h header file references the rcpp.h header file, which is not included with