. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.2.2 Backwards incompatible API changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.2.2.1 Dependencies have increased with a list with missing labels is Deprecated . . . . . . . . . . . . . . . . 16 1.2.2.4 NA naming Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1.2.2.5 Iteration of Series/Index Automatic Matplotlib Converters . . . . . . . . . . . . . . . . . . . . . . . . . 24 1.2.2.14 Other API Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 1.2.3 Deprecations . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1.2.2 Backwards incompatible API changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 1.2.2.1 Possible incompatibility for . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 1.2.2.6 Partial String Indexing Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 1.2.2.7 Concat of different float dtypes is more Accurate . . . . . . . . . . . . . . . . . . . . . . 26 i 1.2.2.10 DataFrame.sort_index changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 1.2.2.11 Groupby Describe Formatting

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1.3.2 Backwards incompatible API changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 1.3.2.1 Possible incompatibility for . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 1.3.2.6 Partial String Indexing Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 1.3.2.7 Concat of different float dtypes Index is more Accurate . . . . . . . . . . . . . . . . . . . . . . 27 1.3.2.10 DataFrame.sort_index changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 1.3.2.11 Groupby Describe Formatting

Repository | Issues & Ideas | Q&A Support | Mailing List pandas is an open source, BSD-licensed library providing high-performance, easy-to-use data structures and data analysis tools for the Python programming Release 1.0.0 2 CONTENTS CHAPTER ONE WHAT’S NEW IN 1.0.0 (JANUARY 29, 2020) These are the changes in pandas 1.0.0. See release for a full changelog including other versions of pandas. Note: The Deprecations will be enforced in major releases (e.g. 1.0.0, 2.0.0, 3.0.0, ...) • API-breaking changes will be made only in major releases (except for experimental features) See Version Policy for more

BSD-licensed library providing high-performance, easy-to-use data structures and data analysis tools for the Python programming language. See the overview for more detail about what’s in the library. CONTENTS guaranteed backwards compatible back to pan- das version 0.20.3 (GH27082) {{ header }} These are the changes in pandas 0.25.0. See release for a full changelog including other versions of pandas. 1.1 Enhancements matplotlib one. Use pandas.set_option('plotting.backend', '') where library implementing the pandas plotting API (GH14130) • pandas.offsets.BusinessHour supports multiple opening

enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.1.2 API changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Series . . . . . . . . . . . . . . . . 21 .to_datetime() changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Merging changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 .describe() changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Period changes . . . . . . . . . . . . . . . . . . . . . . . . . . .

enhancements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1.2.2 API changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Series . . . . . . . . . . . . . . . . 23 .to_datetime() changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Merging changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 .describe() changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Period changes . . . . . . . . . . . . . . . . . . . . . . . . . . .

BSD-licensed library providing high-performance, easy-to-use data structures and data analysis tools for the Python programming language. See the overview for more detail about what’s in the library. CONTENTS guaranteed backwards compatible back to pan- das version 0.20.3 (GH27082) {{ header }} These are the changes in pandas 0.25.0. See release for a full changelog including other versions of pandas. 1.1 Enhancements matplotlib one. Use pandas.set_option('plotting.backend', '') where library implementing the pandas plotting API (GH14130) • pandas.offsets.BusinessHour supports multiple opening

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 3.6 Contributing your changes to pandas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 i 4 Frequently time in learning about NumPy first. See the package overview for more detail about what’s in the library. 2 CONTENTS CHAPTER ONE WHAT’S NEW These are new features and improvements of note in each release v0.17.0 (October 9, 2015) This is a major release from 0.16.2 and includes a small number of API changes, several new features, enhancements, and performance improvements along with a large number of bug

. . . . . . . . . . . . . . . 2185 3.10.1 Standard moving window functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2185 3.10.2 Standard expanding window functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2444 4.1.6 Contributing your changes to pandas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2457 4.1.7 Tips for a successful Repository | Issues & Ideas | Q&A Support | Mailing List pandas is an open source, BSD-licensed library providing high-performance, easy-to-use data structures and data analysis tools for the Python programming