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MAT_VARWRITE(3) 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 *matfp, matvar_t *matvar, enum matio_compression compress); DESCRIPTION The Mat_VarWrite() function writes the MATLAB variable matvar to the MAT file matfp which must be opened for writing. If the MAT file is a version 5 or HDF5 MAT file, the compress option allows the variable to be written us- ing 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), Mat_VarWriteAppend(3) FreeBSD ports 15.quarterly September 12, 2019 MAT_VARWRITE(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO
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