This project provides a collection of utilities for doing lightweight data wrangling.
Project description
datashaper
This project provides a collection of utilities for doing lightweight data wrangling.
There are two goals of the project:
- Create a shareable client/server schema for serialized wrangling instructions
- Maintain an implementation of a basic wrangling engine (based on Arquero) and in the case of python implemented in Pandas
Building
- You need to install poetry python package manager.
- Run:
poetry install
Usage
This project is intended to be used as a library for lightweight data wrangling. In the examples folder there is a Notebook which provides several examples of how to create data wrangling pipelines and how to read json specifications that can be generated by the js implementation.
Example of joining two tables:
from datashaper.pipeline import Pipeline
import datashaper.types as types
import pandas as pd
# id name
# 1 bob
# 2 joe
# 3 jane
parents = pd.DataFrame({
"id": [1, 2, 3],
"name": ['bob', 'joe', 'jane']
})
# id kid
# 1 billy
# 1 jill
# 2 kaden
# 2 kyle
# 3 moe
kids = pd.DataFrame({
"id": [1, 1, 2, 2, 3],
"kid": ['billy', 'jill', 'kaden', 'kyle', 'moe']
})
pipeline = Pipeline()
pipeline.add_dataset('parents', parents)
pipeline.add_dataset('kids', kids)
pipeline.add(Step(
verb=Verb.join,
input="parents",
output="output",
args={
"other": "kids",
"on":["id"]
}
))
# id name kid
# 1 bob billy
# 1 bob jill
# 2 joe kaden
# 2 joe kyle
# 3 jane moe
result = pipeline.run()
Contributing
This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.
When you submit a pull request, a CLA bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., status check, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.
Trademarks
This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.
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