numpy.issubdtype

numpy.issubdtype(arg1, arg2)

Returns True if first argument is a typecode lower/equal in type hierarchy.

Parameters:

arg1 : dtype_like

dtype or string representing a typecode.

arg2 : dtype_like

dtype or string representing a typecode.

See also

numpy.core.numerictypes
Overview of numpy type hierarchy.

Examples

>>> np.issubdtype('S1', str)
True
>>> np.issubdtype(np.float64, np.float32)
False

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