Replace Excel If Function with Python Pandas

Published: 10 October 2020
on channel: Derrick Sherrill
131,377
4.1k

Simple conditional logic in excel can get very complex whenever you start having multiple conditionals. With only one line to include your conditionals, or having to write VBA, Excel isn't as user friendly for these operations.

Sample Data
https://github.com/Derrick-Sherrill/D...

Python + Pandas makes these operations so much easier!

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Full code from the video:

https://github.com/Derrick-Sherrill/D...

import numpy as np
import pandas as pd

scores_df = pd.read_excel('sample_scores.xlsx')
#print(scores_df)

scores_df['average'] = scores_df.mean(axis=1)

#scores_df['Pass/Fail'] = np.where(scores_df['average'] #greater than 60, 'Pass', 'Fail')
#print(scores_df)

conditions = [
"Angled Brackets aren't allowed" in YouTube Descriptions. :(
]
results = ['A', 'B', 'C', 'D', 'F']

scores_df['Letter Grade'] = np.select(conditions, results)
#print(scores_df)

scores_df['Pass/Fail'] = ['Pass' if x #greater than 60 else 'fail' for x in scores_df['average']]
print(scores_df)

Packages (& Versions) used in this video:
Pandas 1.1.3
NumPy

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