error in mexing a file from external source

Dear all

I am trying to use glasso for matlab, downloaded from: http://www-stat.stanford.edu/~tibs/glasso/ . I unzipped the file, set the matlab path to the unzipped file and tried to run the function GraphicalLasso.m from the command window, where I got the following error message: ??? Error using ==> glasso at 68 mex file absent, type 'mex glasso.F' to compile

I typed mex glasso.F to the command window and a second error message appeared: >> mex glasso.F

C:\PROGRA~1\MATLAB\R2010A\BIN\MEX.PL: Error: 'glasso.F' not found.

??? Error using ==> mex at 222 Unable to complete successfully.

The same error appears when I try >> mex glasso instead of >> mex glasso.F

I am using MATLABR2010a on a windows 32 bit machine. Any suggestions? (I have already contacted the code author but he didn't reply, yet). Thanks in advance.

[Kaustubha Govind]

Did you cd into the directory where the file exists?

[Manthos Vogiatzoglou]

No I didn't. After your comment I changed the current folder to the file where glasso.F is located and I got the following error:

>> mex glasso.F lcc preprocessor error: glasso.F:58 Could not find include file "fintrf.h"

Error glasso.F: 2 syntax error; found `c' expecting `;'

Error glasso.F: 2 syntax error; found `The' expecting `;'

Error glasso.F: 2 syntax error; found `Matlab' expecting `;'

Error glasso.F: 2 syntax error; found `mex' expecting `;'

Error glasso.F: 2 syntax error; found `interface' expecting `;'

Error glasso.F: 2 syntax error; found `for' expecting `;'

Error glasso.F: 2 skipping `for'

Error glasso.F: 2 syntax error; found `Lasso' expecting `;'

Error glasso.F: 2 syntax error; found `algorithm' expecting `;'

Error glasso.F: 3 syntax error; found `c' expecting `;'

Error glasso.F: 3 syntax error; found `Written' expecting `;'

Error glasso.F: 3 syntax error; found `by' expecting `;' Error glasso.F: 3 syntax error; found `:' expecting `;'

Error glasso.F: 3 skipping `:' Error glasso.F: 3 syntax error; found `Karshenas' expecting `;'

Error glasso.F: 3 illegal character `@'

Error glasso.F: 3 syntax error; found `fi' expecting `)'

Error glasso.F: 3 skipping `fi' `.' `upm' `.' `es' Error glasso.F: 4 extraneous old-style parameter list Error glasso.F: 4 too many errors

C:\PROGRA~1\MATLAB\R2010A\BIN\MEX.PL: Error: Compile of 'glasso.F' failed.

thanks for the usefull comment.

Answer 1

[Jan]

Do you have a Fortran compiler installed? LCC is a C-compiler, which cannot compiler .F files.

[Manthos Vogiatzoglou]

As I told earlier I am an absolute beginner on the subject, thus I do not know... Can you please tell me how to check this and what could I do, if I dont have one? Thanks in advance.

[James Tursa]

You can check to see what MATLAB knows about by doing the following:

mex -setup
(then press ENTER)

You will see a list of supported compilers that MATLAB knows about. It is likely that Fortran is not listed in your case. It does not come with MATLAB and you have to install it yourself.

[Manthos Vogiatzoglou]

Thank you, Jan and James for your comments. I spent the last couple of hours searching for compilers and stuff in the web and from what I understand there isn't any, free of charge, fortran compiler supported by matlab. Am I correct? If I am not, please elaborate!

[Friedrich]

On Windows there is not free of charge fortran compiler. The list of Supported compiler can be found here:

http://www.mathworks.com/support/compilers/R2010a/win32.html

So you would need the Intel Visual Fortran 10.1 or 11.1