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MAT_VARREAD(3) Library Functions Manual MAT_VARREAD(3) NAME Mat_VarRead -- Reads the information and data for a specific variable in a MATLAB MAT file. SYNOPSIS #include <matio.h> matvar_t * Mat_VarRead(mat_t *matfp, const char *name); DESCRIPTION The Mat_VarRead() function reads the information and data for the vari- able name in the open MAT file. RETURN VALUES If the variable was found in the MAT file and successfully read, a pointer to the MATLAB variable structure is returned. If the variable was not found, or there was an error reading the variable, NULL is re- turned. EXAMPLES This example program opens a MAT file named by the first argument to the program, and reads a variable named x from the file. The matio function Mat_VarPrint is used to print the information and data from the file. #include "matio.h" int main(int argc, char **argv) { mat_t *matfp; matvar_t *matvar; matfp = Mat_Open(argv[1], MAT_ACC_RDONLY); if ( NULL == matfp ) { fprintf(stderr, "Error opening MAT file %s0, argv[1]); return EXIT_FAILURE; } matvar = Mat_VarRead(matfp, "x"); if ( NULL != matvar ) { Mat_VarPrint(matvar); Mat_VarFree(matvar); } Mat_Close(matfp); return EXIT_SUCCESS; } SEE ALSO Mat_VarReadInfo(3), Mat_VarReadNext(3), Mat_VarPrint(3) FreeBSD Ports 14.quarterly September 12, 2019 MAT_VARREAD(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | EXAMPLES | SEE ALSO
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