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October 8, 2019 10:04
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Perfectly wrong prediction with the inverse function
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| from lifelines.utils import concordance_index | |
| names = ['Alice', 'Bob', 'Carol', 'Dave', 'Eve'] | |
| events = [1, 2, 3, 4, 5] | |
| preds = [1/event for event in events] | |
| df = pd.DataFrame(data={'Churn dates': events, 'Predictions': preds}, index=names) | |
| print(df) | |
| print(f'Concordance index: {concordance_index(events, preds)}') |
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