iloc
We improved iloc indexer to support slice as row selection. (#1335)
For example,
>>> kdf = ks.DataFrame({'a':list('abcdefghij')}) >>> kdf a 0 a 1 b 2 c 3 d 4 e 5 f 6 g 7 h 8 i 9 j >>> kdf.iloc[2:5] a 2 c 3 d 4 e >>> kdf.iloc[2:-3:2] a 2 c 4 e 6 g >>> kdf.iloc[5:] a 5 f 6 g 7 h 8 i 9 j >>> kdf.iloc[5:2] Empty DataFrame Columns: [a] Index: []
We added links to the previous talks in our document. (#1319)
You can see a lot of useful talks from the previous events and we will keep updated.
https://koalas.readthedocs.io/en/latest/getting_started/videos.html
We added the following new feature:
DataFrame: - stack (#1329)
stack
Series:
repeat (#1328)
repeat
Index:
difference (#1325)
difference
MultiIndex:
DataFrame.pivot should preserve the original index names. (#1316)
Fix _LocIndexerLike to handle a Series from index. (#1315)
Support MultiIndex in DataFrame.unstack. (#1322)
Support Spark UDT when converting from/to pandas DataFrame/Series. (#1324)
Allow negative numbers for head. (#1330)
Return a Koalas series instead of pandas’ in stats APIs at Koalas DataFrame (#1333)