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Re: How do I use a sparse matrix that was returned by a mex file?
Posted:
Mar 9, 2013 1:09 PM


"Alejandro " <aortizb@ing.uchile.cl> wrote in message <khfcj2$ij1$1@newscl01ah.mathworks.com>... > Hi all, > > Say I created a sparse matrix (say K) in a mex file and returned to matlab environment. I read that sparse matrix has no information of the sparsity and cannot be used in any other matlab function that uses a sparse matrix.
Wrong. If the sparse matrix was created correctly in the mex routine, you can use it just like any other sparse matrix that was created at the mfile level. You can use the FEX function spok to see if it was built properly:
http://www.mathworks.com/matlabcentral/fileexchange/20186spokchecksifamatlabsparsematrixisok
James Tursa



