base.py 文件源码

def argmin(self, axis=None):
        """
        return a ndarray of the minimum argument indexer

        See also
        --------
        numpy.ndarray.argmin
        """

        i8 = self.asi8
        if self.hasnans:
            mask = self._isnan
            if mask.all():
                return -1
            i8 = i8.copy()
            i8[mask] = np.iinfo('int64').max
        return i8.argmin()