This release includes a few new features, performance enhancements, and over 30 bug fixes from 0.8.0. New features include notably NA friendly string processing functionality and a series of new plot types and options.
Add vectorized string processing methods accessible via Series.str (GH620) Add option to disable adjustment in EWMA (GH1584) Radviz plot (GH1566) Parallel coordinates plot Bootstrap plot Per column styles and secondary y-axis plotting (GH1559) New datetime converters millisecond plotting (GH1599) Add option to disable “sparse” display of hierarchical indexes (GH1538) Series/DataFrame’s set_index method can append levels to an existing Index/MultiIndex (GH1569, GH1577)
Add vectorized string processing methods accessible via Series.str (GH620)
Add option to disable adjustment in EWMA (GH1584)
Radviz plot (GH1566)
Parallel coordinates plot
Bootstrap plot
Per column styles and secondary y-axis plotting (GH1559)
New datetime converters millisecond plotting (GH1599)
Add option to disable “sparse” display of hierarchical indexes (GH1538)
Series/DataFrame’s set_index method can append levels to an existing Index/MultiIndex (GH1569, GH1577)
set_index
Improved implementation of rolling min and max (thanks to Bottleneck !) Add accelerated 'median' GroupBy option (GH1358) Significantly improve the performance of parsing ISO8601-format date strings with DatetimeIndex or to_datetime (GH1571) Improve the performance of GroupBy on single-key aggregations and use with Categorical types Significant datetime parsing performance improvements
Improved implementation of rolling min and max (thanks to Bottleneck !)
Add accelerated 'median' GroupBy option (GH1358)
'median'
Significantly improve the performance of parsing ISO8601-format date strings with DatetimeIndex or to_datetime (GH1571)
DatetimeIndex
to_datetime
Improve the performance of GroupBy on single-key aggregations and use with Categorical types
Significant datetime parsing performance improvements
A total of 5 people contributed patches to this release. People with a “+” by their names contributed a patch for the first time.
Chang She
Skipper Seabold
Todd DeLuca +
Vytautas Jancauskas
Wes McKinney