Thanks to visit codestin.com
Credit goes to github.com

Skip to content

feat: add nunique method to Series/DataFrameGroupby #256

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Dec 5, 2023
Merged

feat: add nunique method to Series/DataFrameGroupby #256

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
e33b7ab
feat: add nunique method to Series/DataFrameGroupby
TrevorBergeron Dec 5, 2023
5210054
Merge branch 'main' into groupunique
TrevorBergeron Dec 5, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 6 additions & 0 deletions bigframes/core/groupby/__init__.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -179,6 +179,9 @@ def any(self) -> df.DataFrame:
def count(self) -> df.DataFrame:
return self._aggregate_all(agg_ops.count_op)

def nunique(self) -> df.DataFrame:
return self._aggregate_all(agg_ops.nunique_op)

def cumsum(self, *args, numeric_only: bool = False, **kwargs) -> df.DataFrame:
if not numeric_only:
self._raise_on_non_numeric("cumsum")
Expand Down Expand Up @@ -442,6 +445,9 @@ def max(self, *args) -> series.Series:
def count(self) -> series.Series:
return self._aggregate(agg_ops.count_op)

def nunique(self) -> series.Series:
return self._aggregate(agg_ops.nunique_op)

def sum(self, *args) -> series.Series:
return self._aggregate(agg_ops.sum_op)

Expand Down
2 changes: 2 additions & 0 deletions tests/system/small/test_groupby.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -69,11 +69,13 @@ def test_dataframe_groupby_median(scalars_df_index, scalars_pandas_df_index):
("operator"),
[
(lambda x: x.count()),
(lambda x: x.nunique()),
(lambda x: x.any()),
(lambda x: x.all()),
],
ids=[
"count",
"nunique",
"any",
"all",
],
Expand Down
18 changes: 18 additions & 0 deletions third_party/bigframes_vendored/pandas/core/groupby/__init__.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -363,6 +363,15 @@ def agg(self, func):
"""
raise NotImplementedError(constants.ABSTRACT_METHOD_ERROR_MESSAGE)

def nunique(self):
"""
Return number of unique elements in the group.

Returns:
Series: Number of unique values within each group.
"""
raise NotImplementedError(constants.ABSTRACT_METHOD_ERROR_MESSAGE)


class DataFrameGroupBy(GroupBy):
def agg(self, func, **kwargs):
Expand Down Expand Up @@ -391,3 +400,12 @@ def agg(self, func, **kwargs):
DataFrame
"""
raise NotImplementedError(constants.ABSTRACT_METHOD_ERROR_MESSAGE)

def nunique(self):
"""
Return DataFrame with counts of unique elements in each position.

Returns:
DataFrame
"""
raise NotImplementedError(constants.ABSTRACT_METHOD_ERROR_MESSAGE)