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Exercise: Reshaping/Aggregations

Exercise: Reshaping/Aggregations

Solve some problems related to reshaping/aggregations.

Problem 1: Reshaping with dummies

Look at the following dataset:

Age 8 10 15 15 72 20 25 30 35 60 68 70 25 85 15
Sex M M F F M M M M F F M F F M F

Create dummy ...