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Answer: Grouped Map Pandas UDF
The Grouped Map Pandas UDF is specifically designed for applying a function to each group of a DataFrame, making it ideal for training and applying group-specific models. This API allows for flexible and efficient processing of grouped data, which is essential for tasks involving group-specific modeling.
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You have a requirement to train and apply different machine learning models to different groups within a dataset. Which Pandas Function API would you use to achieve this?
A
Scalar Pandas UDF
B
Grouped Map Pandas UDF
C
Iterator Pandas UDF
D
Grouped Aggregate Pandas UDF