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Non-numeric pivot tables in Pandas
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| import pandas as pd | |
| import csv | |
| df = pd.read_csv('data_raw.csv') | |
| df | |
| pivot_table = df.pivot_table(index=['id'], | |
| columns=['key'], | |
| values=['value'], | |
| aggfunc=lambda x: ' '.join(str(v) for v in x)) | |
| pivot_table.to_csv('data_pivot.csv') |
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