not recognized as an internal or external command

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Albert Rey Ruelan
Albert Rey Ruelan on 27 Jul 2017
Edited: Jan on 27 Jul 2017
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?

Accepted Answer

Jan
Jan on 27 Jul 2017
Edited: Jan on 27 Jul 2017
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.

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