rcpp
Extract long[] from R object
I\'m trying to make a wrapper for some C-based sparse-matrix-handling code (see previous question).In order to call the workhorse C function, I need to create a structure that looks like this:[详细]
2023-02-11 10:13 分类:问答Lemon Graph Library on R using Rcpp
I think that this answer is a bit complex because it involves several things. I want to do high performance computations with R particularly with graphs (networks). As a 开发者_StackOverflowR package[详细]
2023-02-08 17:58 分类:问答Undefined reference error while linking to R and RInside libraries from C++ code using g++ compiler in UNIX
I want to embed R into a C++ program. So I installed R, Rcpp and RInside also. But I get a lot of \"undefined reference to\" errors while compiling with g++ in UNIX. The command I give for compiling i[详细]
2023-02-04 18:51 分类:问答Where can I learn how to write C code to speed up slow R functions? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]
2023-01-23 10:42 分类:问答Linking to another package with R inline
I have a C++/Rcpp function the I need to compile and link to the pomp package to get access to a random number generator.I can get the header file included but how to I get it to link to the compiled[详细]
2023-01-15 06:42 分类:问答Speed up the loop operation in R
I have a big performance problem in R. I wrote a function that iterates over a data.frame object. It simply adds a new column to a data.frame and accumulates something. (simple operation). The data.fr[详细]
2022-12-31 20:25 分类:问答Using C++ libraries in an R package
What is the best way to make use of a C++ library in R, hopefully preserving the C++ data structures.I\'m not at all a C++ user, so I\'m not clear on the relative merits of the available approaches.Th[详细]
2022-12-11 11:23 分类:问答