- 1 year ago
Matlab mex command for building armaMex_demo.cpp in Armadillo in Windows
To build the armaMex_demo.cpp
file from Armadillo using the mex
command in MATLAB on Windows, you need to ensure that you have the required setup for MATLAB and Armadillo. Here's a step-by-step guide to building the armaMex_demo.cpp
file:
Install Armadillo:
If you haven't already installed Armadillo, download and install it from the official website: http://arma.sourceforge.net/Set Up MATLAB Environment:
Make sure you have MATLAB installed on your system and it's accessible from the command line.Configure MATLAB for C++ Compilation:
MATLAB requires a configured C++ compiler to build MEX files. You can set up the compiler using themex -setup
command in MATLAB's Command Window. Follow the prompts to select the appropriate C++ compiler (e.g., Microsoft Visual C++ for Windows).Build the MEX File:
Open the MATLAB Command Window and navigate to the directory wherearmaMex_demo.cpp
is located.Use the
mex
command to build the MEX file:matlabmex -I"path_to_armadillo_include" -I"path_to_blas_lapack_include" -L"path_to_armadillo_lib" -larmadillo -largeArrayDims armaMex_demo.cpp
Replace the following placeholders with actual paths:
path_to_armadillo_include
: The directory containing the Armadillo header files (e.g.,C:\path\to\armadillo\include
).path_to_blas_lapack_include
: The directory containing the BLAS and LAPACK library header files (e.g.,C:\path\to\blas\lapack\include
).path_to_armadillo_lib
: The directory containing the Armadillo library files (e.g.,C:\path\to\armadillo\lib
).
Note: You might need to adjust the
mex
command depending on your specific Armadillo installation.Run the MEX File:
After successful compilation, MATLAB should generate aarmaMex_demo.mexw64
(or similar) file. You can run the MEX file in MATLAB:matlabarmaMex_demo
The
armaMex_demo
function should now be accessible in MATLAB, and you can use it as you would with any other MATLAB function.
Remember that the process of building MEX files might vary depending on your specific MATLAB and Armadillo versions, as well as the C++ compiler you have set up. If you encounter any issues, refer to the Armadillo and MATLAB documentation for more detailed instructions or consult the respective communities for support.