not recognized as an internal or external command

Help i am having trouble using this matlab command. I am trying to use the SVM train using matlab with this command

svmOutFile = [prefix '/svmOut.dat'];

command = ['!libsvm-2.88\windows\svm-train.exe -t 0 -c ' num2str(c) ' -v ' num2str(n) ' ' trainFile ' > ' svmOutFile];

eval(command);

where the error is 'libsvm-2.88\windows\svm-train.exe' is not recognized as an internal or external command, operable program or batch file.

What should i do?

Answer 1

[Jan]

The error message seems to be clear.

Where do you expect the executable "libsvm-2.88\windows\svm-train.exe" to be? Relative to the current folder in the subfolder "libsvm-2.88\windows\"? Then prefer the absolute path name:

svmOutFile = fullfile(prefix, 'svmOut.dat');
exe        = fullfile(cd, 'libsvm-2.88\windows\svm-train.exe');
command    = [exe, ' -t 0 -c ', num2str(c), ' -v ', num2str(n), ' ', trainFile, ' > ', svmOutFile];
system(command)

I do not like eval.

Instead of relying on the current folder by using cd, better use absolute path names even to define the base folder.