@Substitution(name='<STR_LIT>')<EOL><INDENT>@Appender(_common_see_also)<EOL>def cummin(self, axis=<NUM_LIT:0>, **kwargs):<DEDENT>
if axis != <NUM_LIT:0>:<EOL><INDENT>return self.apply(lambda x: np.minimum.accumulate(x, axis))<EOL><DEDENT>return self._cython_transform('<STR_LIT>', numeric_only=False)<EOL>
Cumulative min for each group.