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Update data_preproc_functions.py to solve conversion to float issue #498

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merged 2 commits into from Oct 11, 2023

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baraldian
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Solving issue 497 when converting values to float due to deprecation of float function in numpy.

#497 (comment)

Using pandas built in functions to optimize time.
Proof:

timeit.timeit("df['age'].apply(lambda x: float(x >= 26))", number=10, setup="import pandas as pd;df = pd.DataFrame({'age':range(1000000)})")
2.8678155599627644
timeit.timeit("(df['age'] >= 26).astype(float)", number=10, setup="import pandas as pd;df = pd.DataFrame({'age':range(1000000)})")
0.01317960600135848
((df['age'] >= 26).astype(float) == df['age'].apply(lambda x: float(x >= 26))).all()
True

Solving issue 497 when converting values to float due to deprecation of float function in numpy.

 Trusted-AI#497 (comment) 

Using pandas built in functions to optimize time.
Proof:
timeit.timeit("df['age'].apply(lambda x: float(x >= 26))", number=10, setup="import pandas as pd;df = pd.DataFrame({'age':range(1000000)})")
>>> 2.8678155599627644
timeit.timeit("(df['age'] >= 26).astype(float)", number=10, setup="import pandas as pd;df = pd.DataFrame({'age':range(1000000)})")
>>> 0.01317960600135848
((df['age'] >= 26).astype(float) == df['age'].apply(lambda x: float(x >= 26))).all()
>>> True

Signed-off-by: Andrea Baraldi <baraldian@gmail.com>
@hoffmansc hoffmansc linked an issue Oct 11, 2023 that may be closed by this pull request
@hoffmansc hoffmansc self-requested a review October 11, 2023 15:19
Signed-off-by: Samuel Hoffman <hoffman.sc@gmail.com>
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@hoffmansc hoffmansc left a comment

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Nice work!

@hoffmansc hoffmansc merged commit 2572fcb into Trusted-AI:master Oct 11, 2023
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@PrimozGodec
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Thank you for the fix. @hoffmansc, can a new release be made soon since it is causing issues on Numpy from 1.24? It is causing conflicts with some packages.

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AttributeError: module 'numpy' has no attribute 'float'.
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