import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
df = pd.DataFrame({'icao': ['kk','bb', 'a1', 'a1']})
df
icao | |
---|---|
0 | kk |
1 | bb |
2 | a1 |
3 | a1 |
pd.DataFrame(data = {'icao': np.unique(df.icao, return_inverse=1)[1]})
icao | |
---|---|
0 | 2 |
1 | 1 |
2 | 0 |
3 | 0 |
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