FreeBSD Manual Pages
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 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), Mat_VarWriteAppend(3) FreeBSD Ports 14.quarterly September 12, 2019 MAT_VARWRITE(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=Mat_VarWrite&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>