DataFrame.combine(other, func, fill_value=None, overwrite=True)

DataFrame.copy(deep=True)

DataFrame.idxmin(axis=0, skipna=True)

DataFrame.icol(i)

DataFrame.align(other, join='outer', axis=None, level=None, copy=True, fill_value=None, method=None, limit=None, fill_axis=0, broadcast_axis=None)

DataFrame.xs(key, axis=0, level=None, drop_level=True)

DataFrame.asfreq(freq, method=None, how=None, normalize=False)

DataFrame.to_xarray()

DataFrame.floordiv(other, axis='columns', level=None, fill_value=None)

DataFrame.set_index(keys, drop=True, append=False, inplace=False, verify_integrity=False)