matDeleteVariable (C and Fortran)
Delete array from MAT-file
int matDeleteVariable(MATFile *mfp, const char *name);
integer*4 matDeleteVariable(mfp, name)
Pointer to MAT-file information
Name of mxArray to delete
0 if successful, and nonzero otherwise.
matDeleteVariable deletes the named mxArray from
the MAT-file pointed to by mfp.
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