Skip to content

[SPARK-2871] [PySpark] add key argument for max(), min() and top(n) #2094

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

Closed
davies wants to merge 4 commits into from
Closed

[SPARK-2871] [PySpark] add key argument for max(), min() and top(n) #2094

Changes from 1 commit
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
dd91e08
add `comp` argument for RDD.max() and RDD.min()
davies Aug 22, 2014
2f63512
change `comp` to `key` in min/max
davies Aug 23, 2014
ad7e374
fix tests
davies Aug 23, 2014
ccbaf25
add `key` to top()
davies Aug 23, 2014
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
Prev Previous commit
Next Next commit
fix tests
  • Loading branch information
@davies
davies committed Aug 23, 2014
commit ad7e374bd834d1e789ff95bba09f0c87ba67c4fd
4 changes: 4 additions & 0 deletions python/pyspark/rdd.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -822,6 +822,8 @@ def max(self, key=None):
>>> rdd.max(key=str)
5.0
"""
if key is None:
return self.reduce(max)
return self.reduce(lambda a, b: max(a, b, key=key))

def min(self, key=None):
Expand All @@ -836,6 +838,8 @@ def min(self, key=None):
>>> rdd.min(key=str)
10.0
"""
if key is None:
return self.reduce(min)
return self.reduce(lambda a, b: min(a, b, key=key))

def sum(self):
Expand Down