common_dtype

astropy.utils.metadata.common_dtype(arrs)[source]

Use numpy to find the common dtype for a list of ndarrays.

Only allow arrays within the following fundamental numpy data types: np.bool_, np.object_, np.number, np.character, np.void

Parameters
arrslist of ndarray

Arrays for which to find the common dtype

Returns
dtype_strstr

String representation of dytpe (dtype str attribute)