Supported pandas APIs

The following tables show the pandas APIs that have been implemented (or not) in BigQuery DataFrames.

‘Y’ means it implements all parameters.
‘P’ means it implements only some parameters.

DataFrame

API	Implemented	Missing parameters
`add`	Y
`annotations`	Y
`array`	Y
`array_ufunc`	Y
`bool`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	Y
`floordiv`	Y
`format`	Y
`ge`	Y
`getattr`	P	name
`getattribute`	Y
`getitem`	Y
`gt`	Y
`hash`	Y
`init`	Y
`init_subclass`	Y
`iter`	Y
`le`	Y
`len`	Y
`lt`	Y
`matmul`	Y
`mod`	Y
`module`	Y
`mul`	Y
`ne`	Y
`new`	Y
`nonzero`	Y
`or`	P	other, self
`pow`	Y
`radd`	Y
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`rfloordiv`	Y
`rmod`	Y
`rmul`	Y
`ror`	P	other, self
`rpow`	Y
`rsub`	Y
`rtruediv`	Y
`setattr`	P	name
`setitem`	Y
`sizeof`	Y
`str`	Y
`sub`	Y
`subclasshook`	Y
`truediv`	Y
`weakref`	Y
`abs`	Y
`add`	P	fill_value, level
`add_prefix`	Y
`add_suffix`	Y
`agg`	P	args, axis, kwargs
`aggregate`	P	args, axis, kwargs
`align`	P	broadcast_axis, copy, fill_axis, fill_value, level, limit, method
`all`	P	kwargs, skipna
`any`	P	kwargs, skipna
`apply`	P	axis, by_row, engine, engine_kwargs, raw, result_type
`applymap`	P	kwargs
`assign`	Y
`astype`	P	copy, errors
`at`	Y
`axes`	Y
`bfill`	P	axis, downcast, inplace, limit_area
`columns`	Y
`combine`	Y
`combine_first`	Y
`copy`	P	deep
`corr`	Y
`count`	P	axis
`cov`	P	ddof, min_periods
`cummax`	P	args, axis, kwargs, skipna
`cummin`	P	args, axis, kwargs, skipna
`cumprod`	P	args, axis, kwargs, skipna
`cumsum`	P	args, axis, kwargs, skipna
`describe`	P	exclude, include, percentiles
`diff`	P	axis
`div`	P	fill_value, level
`divide`	P	fill_value, level
`dot`	Y
`drop`	P	errors, inplace
`drop_duplicates`	P	ignore_index, inplace
`droplevel`	Y
`dropna`	P	subset, thresh
`dtypes`	Y
`duplicated`	Y
`empty`	Y
`eq`	P	level
`equals`	Y
`eval`	P	inplace, kwargs
`expanding`	P	axis, method
`explode`	Y
`ffill`	P	axis, downcast, inplace, limit_area
`fillna`	P	axis, downcast, inplace, limit, method
`filter`	Y
`first_valid_index`	Y
`floordiv`	P	fill_value, level
`from_dict`	Y
`from_records`	Y
`ge`	P	level
`get`	Y
`groupby`	P	axis, group_keys, observed, sort
`gt`	P	level
`head`	Y
`iat`	Y
`idxmax`	P	axis, numeric_only, skipna
`idxmin`	P	axis, numeric_only, skipna
`iloc`	Y
`index`	Y
`info`	Y
`interpolate`	P	axis, downcast, inplace, kwargs, limit, limit_area, limit_direction
`isin`	Y
`isna`	Y
`isnull`	Y
`iterrows`	Y
`itertuples`	Y
`join`	P	lsuffix, rsuffix, sort, validate
`kurt`	P	axis, kwargs, skipna
`kurtosis`	P	axis, kwargs, skipna
`le`	P	level
`loc`	Y
`lt`	P	level
`map`	P	kwargs
`max`	P	kwargs, skipna
`mean`	P	kwargs, skipna
`median`	P	axis, kwargs, skipna
`melt`	P	col_level, ignore_index
`memory_usage`	P	deep
`merge`	P	copy, indicator, left_index, right_index, validate
`min`	P	kwargs, skipna
`mod`	P	fill_value, level
`mul`	P	fill_value, level
`multiply`	P	fill_value, level
`ndim`	Y
`ne`	P	level
`nlargest`	Y
`notna`	Y
`notnull`	Y
`nsmallest`	Y
`nunique`	P	axis, dropna
`pct_change`	P	fill_method, freq, kwargs, limit
`pipe`	Y
`pivot`	Y
`plot`	Y
`pow`	P	fill_value, level
`prod`	P	kwargs, min_count, skipna
`product`	P	kwargs, min_count, skipna
`query`	P	inplace, kwargs
`radd`	P	fill_value, level
`rank`	P	pct
`rdiv`	P	fill_value, level
`reindex`	P	copy, fill_value, level, limit, method, tolerance
`reindex_like`	P	copy, limit, method, tolerance
`rename`	P	axis, copy, errors, index, inplace, level, mapper
`rename_axis`	P	axis, columns, copy, index, inplace
`reorder_levels`	Y
`replace`	P	inplace, limit, method
`reset_index`	P	allow_duplicates, col_fill, col_level, inplace, level, names
`rfloordiv`	P	fill_value, level
`rmod`	P	fill_value, level
`rmul`	P	fill_value, level
`rolling`	P	axis, center, closed, method, on, step, win_type
`rpow`	P	fill_value, level
`rsub`	P	fill_value, level
`rtruediv`	P	fill_value, level
`sample`	P	axis, ignore_index, replace, weights
`select_dtypes`	Y
`set_index`	P	inplace, verify_integrity
`shape`	Y
`shift`	P	axis, fill_value, freq, suffix
`size`	Y
`skew`	P	axis, kwargs, skipna
`sort_index`	P	axis, ignore_index, inplace, key, kind, level, sort_remaining
`sort_values`	P	axis, ignore_index, inplace, key
`stack`	P	dropna, future_stack, sort
`std`	P	ddof, kwargs, skipna
`sub`	P	fill_value, level
`subtract`	P	fill_value, level
`sum`	P	kwargs, min_count, skipna
`swaplevel`	Y
`tail`	Y
`to_csv`	P	chunksize, columns, compression, date_format, decimal, doublequote, encoding, errors, escapechar, float_format, index_label, lineterminator, mode, na_rep, quotechar, quoting, storage_options
`to_dict`	P	index
`to_excel`	P	columns, engine, engine_kwargs, float_format, freeze_panes, header, index, index_label, inf_rep, merge_cells, na_rep, startcol, startrow, storage_options
`to_gbq`	P	auth_local_webserver, chunksize, credentials, location, progress_bar, project_id, reauth, table_schema
`to_html`	Y
`to_json`	P	compression, date_format, date_unit, default_handler, double_precision, force_ascii, indent, mode, storage_options
`to_latex`	P	bold_rows, caption, column_format, decimal, encoding, escape, float_format, formatters, index_names, label, longtable, multicolumn, multicolumn_format, multirow, na_rep, position, sparsify
`to_markdown`	P	storage_options
`to_numpy`	Y
`to_orc`	P	engine, engine_kwargs, index
`to_parquet`	P	engine, kwargs, partition_cols, storage_options
`to_pickle`	P	compression, protocol, storage_options
`to_records`	Y
`to_string`	Y
`truediv`	P	fill_value, level
`unstack`	P	fill_value, sort
`update`	P	errors
`value_counts`	Y
`values`	Y
`var`	P	ddof, kwargs, skipna

## DataFrameGroupBy

API	Implemented	Missing parameters
`annotations`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	Y
`format`	Y
`ge`	Y
`getattribute`	Y
`getitem`	Y
`gt`	Y
`hash`	Y
`init`	P	axis, exclusions, group_keys, grouper, keys, level, obj, observed, selection, sort
`init_subclass`	Y
`le`	Y
`lt`	Y
`module`	Y
`ne`	Y
`new`	Y
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`setattr`	Y
`sizeof`	Y
`str`	Y
`subclasshook`	Y
`weakref`	Y
`agg`	P	args, engine, engine_kwargs
`aggregate`	P	args, engine, engine_kwargs
`all`	P	skipna
`any`	P	skipna
`count`	Y
`cumcount`	Y
`cummax`	P	axis
`cummin`	P	axis
`cumprod`	P	axis
`cumsum`	P	axis
`diff`	P	axis
`expanding`	P	args, kwargs
`max`	P	engine, engine_kwargs, min_count
`mean`	P	engine, engine_kwargs
`median`	Y
`min`	P	engine, engine_kwargs, min_count
`nunique`	P	dropna
`prod`	Y
`rolling`	P	args, kwargs
`shift`	P	axis, fill_value, freq, suffix
`skew`	P	axis, kwargs, skipna
`std`	P	ddof, engine, engine_kwargs
`sum`	P	engine, engine_kwargs, min_count
`var`	P	ddof, engine, engine_kwargs

## Index

API	Implemented	Missing parameters
`T`	Y
`annotations`	Y
`array`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	P	other
`format`	Y
`ge`	P	other
`getattribute`	Y
`getitem`	Y
`gt`	P	other
`hash`	Y
`init`	Y
`init_subclass`	Y
`le`	P	other
`len`	Y
`lt`	P	other
`module`	Y
`ne`	P	other
`new`	P	cls, copy, data, dtype, name, tupleize_cols
`or`	P	other, self
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`ror`	P	other, self
`setattr`	Y
`sizeof`	Y
`str`	Y
`subclasshook`	Y
`weakref`	Y
`all`	P	args, kwargs
`any`	P	args, kwargs
`argmax`	P	args, axis, kwargs, skipna
`argmin`	P	args, axis, kwargs, skipna
`astype`	P	copy
`copy`	P	deep
`drop`	P	errors
`drop_duplicates`	Y
`dropna`	Y
`dtype`	Y
`empty`	Y
`fillna`	P	downcast
`get_level_values`	Y
`has_duplicates`	Y
`is_monotonic_decreasing`	Y
`is_monotonic_increasing`	Y
`is_unique`	Y
`isin`	P	level
`max`	P	args, axis, kwargs, skipna
`min`	P	args, axis, kwargs, skipna
`name`	Y
`names`	Y
`ndim`	Y
`nlevels`	Y
`nunique`	P	dropna
`rename`	P	inplace
`shape`	Y
`size`	Y
`sort_values`	P	key, return_indexer
`to_numpy`	P	copy, na_value
`to_series`	Y
`transpose`	P	args, kwargs
`value_counts`	P	bins
`values`	Y

## pandas module

API	Implemented	Missing parameters
`ArrowDtype`	Y
`BooleanDtype`	Y
`DataFrame`	Y
`Float64Dtype`	Y
`Index`	Y
`Int64Dtype`	Y
`NA`	Y
`NamedAgg`	Y
`Series`	Y
`StringDtype`	Y
`builtins`	Y
`cached`	Y
`doc`	Y
`file`	Y
`loader`	Y
`name`	Y
`package`	Y
`path`	Y
`spec`	Y
`annotations`	Y
`concat`	P	copy, keys, levels, names, sort, verify_integrity
`cut`	P	duplicates, include_lowest, ordered, precision, retbins, right
`get_dummies`	P	sparse
`merge`	P	copy, indicator, left_index, right_index, validate
`option_context`	Y
`options`	Y
`pandas`	Y
`qcut`	P	precision, retbins
`read_csv`	P	cache_dates, chunksize, comment, compression, converters, date_format, date_parser, dayfirst, decimal, delim_whitespace, delimiter, dialect, doublequote, dtype_backend, encoding_errors, escapechar, false_values, float_precision, infer_datetime_format, iterator, keep_date_col, keep_default_na, lineterminator, low_memory, memory_map, na_filter, na_values, nrows, on_bad_lines, parse_dates, quotechar, quoting, skip_blank_lines, skipfooter, skipinitialspace, skiprows, storage_options, thousands, true_values, verbose
`read_gbq`	P	auth_local_webserver, credentials, dialect, location, progress_bar_type, project_id, query, reauth, use_bqstorage_api
`read_json`	P	chunksize, compression, convert_axes, convert_dates, date_unit, dtype_backend, encoding_errors, keep_default_dates, nrows, precise_float, storage_options, typ
`read_parquet`	P	columns, dtype_backend, filesystem, filters, kwargs, storage_options, use_nullable_dtypes
`read_pickle`	Y
`to_datetime`	P	cache, dayfirst, errors, exact, infer_datetime_format, origin, yearfirst

## Series

API	Implemented	Missing parameters
`T`	Y
`add`	Y
`and`	Y
`annotations`	Y
`array`	Y
`array_ufunc`	Y
`bool`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	Y
`floordiv`	Y
`format`	Y
`ge`	Y
`getattr`	P	name
`getattribute`	Y
`getitem`	P	key
`gt`	Y
`hash`	Y
`init`	P	copy, data, dtype, fastpath, index, name
`init_subclass`	Y
`invert`	Y
`iter`	Y
`le`	Y
`len`	Y
`lt`	Y
`matmul`	Y
`mod`	Y
`module`	Y
`mul`	Y
`ne`	Y
`new`	Y
`nonzero`	Y
`or`	Y
`pow`	Y
`radd`	Y
`rand`	Y
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`rfloordiv`	Y
`rmatmul`	Y
`rmod`	Y
`rmul`	Y
`ror`	Y
`rpow`	Y
`rsub`	Y
`rtruediv`	Y
`setattr`	Y
`sizeof`	Y
`str`	Y
`sub`	Y
`subclasshook`	Y
`truediv`	Y
`weakref`	Y
`abs`	Y
`add`	P	axis, fill_value, level
`add_prefix`	Y
`add_suffix`	Y
`agg`	P	args, axis, kwargs
`aggregate`	P	args, axis, kwargs
`all`	P	axis, bool_only, kwargs, skipna
`any`	P	axis, bool_only, kwargs, skipna
`apply`	P	args, convert_dtype, kwargs
`argmax`	P	args, axis, kwargs, skipna
`argmin`	P	args, axis, kwargs, skipna
`astype`	P	copy, errors
`at`	Y
`between`	Y
`bfill`	P	axis, downcast, inplace, limit_area
`clip`	P	axis, inplace, kwargs
`copy`	P	deep
`corr`	Y
`count`	Y
`cov`	P	ddof, min_periods
`cummax`	P	args, axis, kwargs, skipna
`cummin`	P	args, axis, kwargs, skipna
`cumprod`	P	args, axis, kwargs, skipna
`cumsum`	P	args, axis, kwargs, skipna
`diff`	Y
`div`	P	axis, fill_value, level
`divide`	P	axis, fill_value, level
`divmod`	P	axis, fill_value, level
`dot`	Y
`drop`	P	errors, inplace
`drop_duplicates`	P	ignore_index, inplace
`droplevel`	Y
`dropna`	Y
`dt`	Y
`dtype`	Y
`dtypes`	Y
`duplicated`	Y
`empty`	Y
`eq`	P	axis, fill_value, level
`equals`	Y
`expanding`	P	axis, method
`explode`	Y
`ffill`	P	axis, downcast, inplace, limit_area
`fillna`	P	axis, downcast, inplace, limit, method
`filter`	Y
`floordiv`	P	axis, fill_value, level
`ge`	P	axis, fill_value, level
`get`	Y
`groupby`	P	group_keys, observed, sort
`gt`	P	axis, fill_value, level
`head`	Y
`iat`	Y
`idxmax`	P	args, axis, kwargs, skipna
`idxmin`	P	args, axis, kwargs, skipna
`iloc`	Y
`index`	Y
`interpolate`	P	axis, downcast, inplace, kwargs, limit, limit_area, limit_direction
`is_monotonic_decreasing`	Y
`is_monotonic_increasing`	Y
`isin`	Y
`isna`	Y
`isnull`	Y
`kurt`	P	axis, kwargs, numeric_only, skipna
`kurtosis`	P	axis, kwargs, numeric_only, skipna
`le`	P	axis, fill_value, level
`loc`	Y
`lt`	P	axis, fill_value, level
`map`	Y
`mask`	P	axis, inplace, level
`max`	P	axis, kwargs, numeric_only, skipna
`mean`	P	axis, kwargs, numeric_only, skipna
`median`	P	axis, kwargs, numeric_only, skipna
`min`	P	axis, kwargs, numeric_only, skipna
`mod`	P	axis, fill_value, level
`mode`	P	dropna
`mul`	P	axis, fill_value, level
`multiply`	P	axis, fill_value, level
`name`	Y
`ndim`	Y
`ne`	P	axis, fill_value, level
`nlargest`	Y
`notna`	Y
`notnull`	Y
`nsmallest`	Y
`nunique`	P	dropna
`pad`	P	axis, downcast, inplace
`pct_change`	P	fill_method, freq, kwargs, limit
`pipe`	Y
`plot`	Y
`pow`	P	axis, fill_value, level
`prod`	P	axis, kwargs, min_count, numeric_only, skipna
`product`	P	axis, kwargs, min_count, numeric_only, skipna
`radd`	P	axis, fill_value, level
`rank`	P	pct
`rdiv`	P	axis, fill_value, level
`rdivmod`	P	axis, fill_value, level
`reindex`	P	axis, copy, fill_value, level, limit, method, tolerance
`reindex_like`	P	copy, limit, method, tolerance
`rename`	P	axis, copy, errors, inplace, level
`rename_axis`	P	axis, copy, index, inplace
`reorder_levels`	Y
`replace`	P	inplace, limit, method
`reset_index`	P	allow_duplicates, inplace, level
`rfloordiv`	P	axis, fill_value, level
`rmod`	P	axis, fill_value, level
`rmul`	P	axis, fill_value, level
`rolling`	P	axis, center, closed, method, on, step, win_type
`round`	P	args, kwargs
`rpow`	P	axis, fill_value, level
`rsub`	P	axis, fill_value, level
`rtruediv`	P	axis, fill_value, level
`sample`	P	axis, ignore_index, replace, weights
`shape`	Y
`shift`	P	axis, fill_value, freq, suffix
`size`	Y
`skew`	P	axis, kwargs, numeric_only, skipna
`sort_index`	P	ignore_index, inplace, key, kind, level, sort_remaining
`sort_values`	P	ignore_index, inplace, key
`std`	P	axis, ddof, kwargs, numeric_only, skipna
`str`	Y
`struct`	Y
`sub`	P	axis, fill_value, level
`subtract`	P	axis, fill_value, level
`sum`	P	axis, kwargs, min_count, numeric_only, skipna
`swaplevel`	P	copy
`tail`	Y
`to_csv`	P	chunksize, columns, compression, date_format, decimal, doublequote, encoding, errors, escapechar, float_format, index_label, lineterminator, mode, na_rep, quotechar, quoting, storage_options
`to_dict`	Y
`to_excel`	P	columns, engine, engine_kwargs, float_format, freeze_panes, header, index, index_label, inf_rep, merge_cells, na_rep, startcol, startrow, storage_options
`to_frame`	Y
`to_json`	P	compression, date_format, date_unit, default_handler, double_precision, force_ascii, indent, mode, storage_options
`to_latex`	P	bold_rows, caption, column_format, decimal, encoding, escape, float_format, formatters, index_names, label, longtable, multicolumn, multicolumn_format, multirow, na_rep, position, sparsify
`to_list`	Y
`to_markdown`	P	storage_options
`to_numpy`	Y
`to_pickle`	P	compression, protocol, storage_options
`to_string`	Y
`to_xarray`	Y
`transpose`	P	args, kwargs
`truediv`	P	axis, fill_value, level
`unique`	Y
`unstack`	P	fill_value, sort
`value_counts`	P	bins
`values`	Y
`var`	P	axis, ddof, kwargs, numeric_only, skipna
`where`	P	axis, inplace, level

## Series.dt methods

API	Implemented	Missing parameters
`annotations`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	Y
`format`	Y
`ge`	Y
`getattribute`	Y
`gt`	Y
`hash`	Y
`init`	P	orig
`init_subclass`	Y
`le`	Y
`lt`	Y
`module`	Y
`ne`	Y
`new`	P	cls, data
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`setattr`	P	key
`sizeof`	Y
`str`	Y
`subclasshook`	Y
`weakref`	Y
`date`	Y
`day`	Y
`dayofweek`	Y
`floor`	P	args, kwargs
`hour`	Y
`minute`	Y
`month`	Y
`normalize`	P	args, kwargs
`quarter`	Y
`second`	Y
`strftime`	P	args, kwargs
`time`	Y
`tz`	Y
`unit`	Y
`year`	Y

## Series.str methods

API	Implemented	Missing parameters
`annotations`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	Y
`format`	Y
`ge`	Y
`getattribute`	Y
`gt`	Y
`hash`	Y
`init`	Y
`init_subclass`	Y
`le`	Y
`lt`	Y
`module`	Y
`ne`	Y
`new`	Y
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`setattr`	P	key
`sizeof`	Y
`str`	Y
`subclasshook`	Y
`weakref`	Y
`capitalize`	Y
`cat`	P	na_rep, sep
`center`	Y
`contains`	P	na
`endswith`	P	na
`extract`	P	expand
`find`	Y
`fullmatch`	P	na
`get`	Y
`isalnum`	Y
`isalpha`	Y
`isdecimal`	Y
`isdigit`	Y
`islower`	Y
`isnumeric`	Y
`isspace`	Y
`isupper`	Y
`len`	Y
`ljust`	Y
`lower`	Y
`lstrip`	P	to_strip
`match`	P	na
`pad`	Y
`repeat`	Y
`replace`	P	n
`rjust`	Y
`rstrip`	P	to_strip
`slice`	P	step
`startswith`	P	na
`strip`	P	to_strip
`upper`	Y
`zfill`	Y

## SeriesGroupBy

API	Implemented	Missing parameters
`annotations`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	Y
`format`	Y
`ge`	Y
`getattribute`	Y
`getitem`	Y
`gt`	Y
`hash`	Y
`init`	P	axis, exclusions, group_keys, grouper, keys, level, obj, observed, selection, sort
`init_subclass`	Y
`le`	Y
`lt`	Y
`module`	Y
`ne`	Y
`new`	Y
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`setattr`	Y
`sizeof`	Y
`str`	Y
`subclasshook`	Y
`weakref`	Y
`agg`	P	args, engine, engine_kwargs
`aggregate`	P	args, engine, engine_kwargs
`all`	P	skipna
`any`	P	skipna
`count`	Y
`cumcount`	Y
`cummax`	P	axis
`cummin`	P	axis
`cumprod`	P	axis
`cumsum`	P	axis
`diff`	P	axis
`expanding`	P	args, kwargs
`max`	P	engine, engine_kwargs, min_count
`mean`	P	engine, engine_kwargs
`median`	Y
`min`	P	engine, engine_kwargs, min_count
`nunique`	P	dropna
`prod`	Y
`rolling`	P	args, kwargs
`shift`	P	axis, fill_value, freq, suffix
`skew`	P	axis, kwargs, skipna
`std`	P	ddof, engine, engine_kwargs
`sum`	P	engine, engine_kwargs, min_count
`var`	P	ddof, engine, engine_kwargs

## Window

API	Implemented	Missing parameters
`annotations`	Y
`class`	Y
`delattr`	Y
`dict`	Y
`dir`	Y
`doc`	Y
`eq`	Y
`format`	Y
`ge`	Y
`getattribute`	Y
`gt`	Y
`hash`	Y
`init`	P	axis, center, closed, method, min_periods, obj, on, selection, step, win_type, window
`init_subclass`	Y
`le`	Y
`lt`	Y
`module`	Y
`ne`	Y
`new`	Y
`reduce`	Y
`reduce_ex`	Y
`repr`	Y
`setattr`	Y
`sizeof`	Y
`str`	Y
`subclasshook`	Y
`weakref`	Y
`count`	P	numeric_only
`max`	P	args, engine, engine_kwargs, kwargs, numeric_only
`mean`	P	engine, engine_kwargs, numeric_only
`min`	P	engine, engine_kwargs, numeric_only
`std`	P	ddof, engine, engine_kwargs, numeric_only
`sum`	P	engine, engine_kwargs, numeric_only
`var`	P	ddof, engine, engine_kwargs, numeric_only