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Extension pandas dtype and array for physical units.

Project description

Extension pandas dtype and array for physical units

Warning: Not fully compatible with pandas yet, especially not so for 1.0. Some operations may or may not work, while common ones should.

History

Originally created for PyCon CZ 2019 (and later BI Fórum Budapest / PyData Cambridge the same year).

Installation

pip install pandas-units-extensions

For development:

pip install -e .

Examples

import pandas as pd
import pandas_units_extension as _

temps = pd.DataFrame({
    "city": ["Prague", "Kathmandu", "Catania", "Boston"],
    "temperature": pd.Series([20, 22, 31, 16], dtype="unit[deg_C]")
})
temps["temperature"].units.to("deg_F")

...

df = pd.DataFrame({
    "distance": pd.Series([10, 12, 22, 18], dtype="unit[km]"),
    "time": pd.Series([50, 60, 120, 108], dtype="unit[min]")
})
speed = df["distance"] / df["time"]
speed.units.to_si()

See doc/units.ipynb for more.

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Project details


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This version

0.1.0

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