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Scilab help >> Sparse Matrix > mtlb_sparse

mtlb_sparse

convert sparse matrix

Calling Sequence

Y=mtlb_sparse(X)

Arguments

X

sparse matrix

Y

sparse matrix in Matlab format

Description

Y=mtlb_sparse(X) is used to convert X, a Scilab sparse matrix, to Matlab format. Y is the a variable with type 7, i.e. type(Y) is equal to 7. This function should be used in mexfiles (a Matlab mexfile containing sparse matrices can be used only if the Scilab sparse matrices are converted to that format). The functions full and spget work with this format.

Other operations and functions using this format can be overloaded with Scilab functions using the prefix "%msp". For instance the function %msp_p(x) (see SCI/modules/overloading/macros directory) is used to display such "type 7" objects.

Examples

X=sparse(rand(2,2)); Y=mtlb_sparse(X);
Y, full(Y), [ij,v,mn]=spget(Y)

See Also

  • full — sparse to full matrix conversion
  • spget — retrieves entries of sparse matrix
<< lusolve Sparse Matrix nnz >>

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Last updated:
Wed Oct 05 12:09:57 CEST 2011