Mat_VarWrite(3) BSD Library Functions Manual Mat_VarWrite(3)
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 vari-
able 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)
BSD March 18, 2012 BSD
matio 1.5.9 - Generated Sat Nov 5 07:32:27 CDT 2016