A Python implementation of Fenwick trees
Project description
fenwick
A Python library that implements Fenwick trees, based on the algorithm in (Fenwick 1994).
Features
Update a frequency in O(log n).
Retrieve a single frequency in O(log n).
Initialize existing frequencies in O(n).
Retrieve all frequencies in O(n).
Requirements
fenwick supports Python 2.7 and Python 3.x.
Linux, Mac, and Windows are supported.
Installation
fenwick is available on PyPI, the Python Package Index.
$ pip install fenwick
Documentation
See documentation.md.
Example Usage
See example.py.
Tests
Tests are in tests/.
# Run tests $ python -m unittest discover tests -v
License
The code in this repository has an MIT License.
See LICENSE.
References
Fenwick, Peter M. 1994. “A New Data Structure for Cumulative Frequency Tables.” Software: Practice and Experience 24 (3): 327–36.
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
Built Distribution
Hashes for fenwick-0.1.0-py2.py3-none-any.whl
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 | 364add7b3fc9ca6433de5a78db58bb10275ecd61bb1c74a5ca978d0fb9194785 |
|
| MD5 | ea9d8011664a51478c8e2fafa42e6a68 |
|
| BLAKE2b-256 | 82ac0418ffb4a19016fad413afa5cdd7d7f851c36abd2c481cefc9fefb3e81b6 |
