Aperçu des questions

1. 1. Which Pandas structure represents a single labeled column?
2. 2. Difference between df.loc[...] and df.iloc[...]?
3. 3. What does this print?

   import pandas as pd
   df = pd.DataFrame({'a': [1, 2, 3], 'b': [4, 5, 6]})
   print(df['a'].sum())

4. 4. Which selects rows where age >= 18?
5. 5. What does this return?

   df = pd.DataFrame({'g': ['a', 'b', 'a'], 'v': [10, 20, 30]})
   print(df.groupby('g')['v'].sum().to_dict())

… et 15 autres questions.

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