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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¶
TheMat_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)March 18, 2012 | Linux 4.19.0-10-amd64 |