NAME

       Mat_VarWrite — Writes a MATLAB variable to a MATLAB MAT file.

SYNOPSIS

       #include <matio.h>

       int
       Mat_VarWrite(mat_t *mat, matvar_t *matvar, enum matio_compression compress);

DESCRIPTION

       The  Mat_VarWrite()  function  writes the MATLAB variable matvar to the MAT file mat which must be opened
       for writing. If the MAT file is a level 5 MAT file, the compress option allows the variable to be written
       using zlib  compression  if  available.  If  compression  is  not  available,  the  variable  is  written
       uncompressed.

RETURN VALUES

       The  function  returns  0  if the variable was successfully written to the MAT file.  otherwise, an error
       value is returned.

EXAMPLES

       This example program creates a MAT file named by the first  argument  to  the  program,  and  writes  the
       variable named m_pi to the file.

       #include <math.h>
       #include "matio.h"

       int
       main(int argc,char **argv)
       {
           mat_t    *matfp;
           matvar_t *matvar;
           size_t    dims[2] = {1,1};
           double    m_pi = M_PI;

           matfp = Mat_CreateVer(argv[1],NULL,MAT_FT_DEFAULT);
           if ( NULL == matfp ) {
               fprintf(stderr,"Error creating MAT file %s0,argv[1]);
               return EXIT_FAILURE;
           }

           matvar = Mat_VarCreate("m_pi",MAT_C_DOUBLE,MAT_T_DOUBLE,2,dims,&m_pi,0);
           if ( NULL != matvar ) {
               Mat_VarWrite(matfp,matvar,MAT_COMPRESSION_ZLIB);
               Mat_VarFree(matvar);
           }

           Mat_Close(matfp);
           return EXIT_SUCCESS;
       }

SEE ALSO

       Mat_CreateVer(3), Mat_Open(3), Mat_VarRead(3)

Debian                                           March 18, 2012                                  MAT_VARWRITE(3)