#### Basic Ideas: For standardlone, it may usually requires - "R.dll", "Rmath.dll", "Rblas.dll", and "Rlapack.dll" for Windows, or - "libR.a", "libRmath.a", "libRblas.a", and "libR.a" for Linux shared library, or - "libR.so", "libRmath.so", "libRblas.so", and "libR.so" for Linux static library. "Rmath", "Rblas", and "Rlapac" may not necessary for every situation which is dependent on what functions are called inside C or Fortan codes. --- #### For Windows: - Tools The tools in the section <a href="<? echo "$PHP_SELF?item=windows"; ?>">Windows</a> are all required. Also, "mingw32-make.exe" for MinGW32 is also required and located at "Rtools\MinGW\bin\make.exe". (my mirror <a href="./source/standalone/windows/Rmath.dll">here</a>) - Reference This part is only testing on R-2.7.1 and Windows XP version. See the section 9.2 in the <a href="http://cran.r-project.org/doc/manuals/R-admin.html" target = "_blank">R Installation and Administration</a> (my mirror <a href="./reference/R-admin.pdf" target="_blank">here</a>) for detail. - Recompile After you install the R from the executable file, there are "R.dll", "Rblas.dll", "Rlapack.dll" inside the "C:\Progra~1\R\R-2.7.1\bin\", and also "R.h", "Rmath.h" inside the "C:\Progra~1\R\R-2.7.1\include". We need a further file "Rmath.dll" for building standardlone codes on Windows. Download the R source code, and uncompress the source. - At "R-2.7.1\src\include\", type ``` SHELL> make -f Makefile.win config.h Rconfig.h Rmath.h ``` - At "R-2.7.1\src\nmath\standatdlone\", type ``` SHELL> make -f Makefile.win ``` - After previous steps, the shared library and static library, "<a href="./source/standalone/windows/Rmath.dll">Rmath.dll</a>" and "<a href="./source/standalone/windows/libRmath.a">libRmath.a</a>" are located at "R-2.7.1\src\nmath\standatdlone\" - Copy them to "C:\Progra~1\R\R-2.7.1\bin\". - Then, you can do the same compiling procedure as Linux version at the following. --- #### For Linux: - Reference For the detail, read the web page <a href="http://cran.r-project.org/manuals.html" target="_blank">The R Manuals</a> and the PDF document Writing R Extensions (Chapter 5.13) in The R Manuals (my mirror <a href="./reference/R-exts.pdf" target="_blank">here</a>). - Recompile The default installation (RPM or compile from source) of R doesn't build the standalone library, so you have to do it by yourself. Download the source <a href="http://cran.r-project.org/src/base/R-1.7.1.tgz">R-1.7.1.tgz</a> (9MB) (my mirror <a href="./source/R-1.7.1.tgz">here</a>). ``` SHELL> tar zxvf R-1.7.1.tgz SHELL> cd R-1.7.1/ SHELL> ./configure; make SHELL> cd src/nmath/standalone/ SHELL> make shared SHELL> cp libRmath.so /usr/lib/R/bin/ SHELL> cd /usr/lib SHELL> ln -s /usr/lib/libRmath.so ./R/bin/libRmath.so ``` 1. The subdirectory "src/nmath/standalone/" is the source of Mathlib for standalone library "libRmath". 2. The "Rmath.h" (in /usr/lib/R/include/) is the R set of mathematical functions. 3. The fils "<a href="./source/standalone/linux/libRmath.so">libRmath.so</a>" is the sared library for Linux. 4. Suggest to copy the library files to "/usr/lib/R/bin/". - Related information for this topic: 1. The file "<a href="./source/standalone/linux/libRmath.a">libRmath.a</a>" is the static library for Linux. Use "make static" to subsitute "make shared". 2. The file "Rmath.dll" is the dynamic loaded library for MS Windows. - Main code The C code "<a href="./example/standalone/stand.c" target="_blank">stand.c</a>" will set the seed and generate 10 random variables from standard normal (mu = 0, sigma = 1) and compute the cumulative probability. ``` #define MATHLIB_STANDALONE #include <Rmath.h> int main(){ int i; unsigned int SEED1, SEED2; double mu, sigma, PHI_X, *X; mu = 0; sigma = 1; SEED1 = 12345; SEED2 = 67890; set_seed(SEED1, SEED2); X = (double *) malloc(10); for(i = 0; i < 10; i++){ X[i] = rnorm(mu, sigma); PHI_X = pnorm(X[i], mu, sigma, 1, 0); printf("X: %f, PHI(X): %f\n", X[i], PHI_X); } } ``` - Compile - Linux: ``` SHELL> gcc -o stand stand.c -I/usr/lib/R/include/ -lRmath -lm ``` Make sure the required libraries are all in the path, otherwise you have to do the followings. ``` SHELL> gcc -o stand stand.c -I/usr/lib/R/include/ -L/usr/lib/R/lib/ -lRmath -lm SHELL> LD_LIBRARY_PATH=/usr/lib/R/lib/:$LD_LIBRARY_PATH ``` The output will be a executable file "<a href="./example/standalone/stand">stand</a>" (for linux only). - Output The output is as the following. ``` X: 0.999948, PHI(X): 0.841332 X: -1.768380, PHI(X): 0.038499 X: 0.623938, PHI(X): 0.733666 X: 2.167754, PHI(X): 0.984911 X: 0.749400, PHI(X): 0.773192 X: -1.253019, PHI(X): 0.105099 X: 0.640719, PHI(X): 0.739147 X: 0.567502, PHI(X): 0.714814 X: -1.744883, PHI(X): 0.040503 X: 0.140647, PHI(X): 0.555925 ``` --- <div w3-include-html="../preamble_tail_date.html"></div>