Question

MATLABR2014a安装libsvm老是mex -setup出错

>> mex -setup
MEX 配置为使用 'Microsoft Visual C++ 2013 Professional (C)' 以进行 C 语言编译。
Warning: The MATLAB C and Fortran API has changed to support MATLAB
variables with more than 2^32-1 elements. In the near future
you will be required to update your code to utilize the
new API. You can find more information about this at:
http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.

要选择不同的 C 编译器，请从以下选项中选择一种命令:
lcc-win32 mex -setup:'E:\Program Files\MATLAB\2014a\bin\win32\mexopts\lcc-win32.xml' C
Microsoft Visual C++ 2012 (C) mex -setup:'E:\Program Files\MATLAB\2014a\bin\win32\mexopts\msvc110.xml' C
Microsoft Visual C++ 2013 Professional (C) mex -setup:C:\Users\Administrator\AppData\Roaming\MathWorks\MATLAB\R2014a\mex_C_win32.xml C

要选择不同的语言，请从以下选项中选择一种命令:
mex -setup C++
mex -setup FORTRAN

老是这里出错，，到底该怎么办啊，求大神？~~

Answer 1

这个问题是因为你的matlab是64位的版本，现在libsvm针对64位系统单独做了封装。在libsvm下有一个window目录，libsvm\windows\*.mexw64。直接将libsvm\windows加载到matlab运行路径上就可以了。无需编译！