Exercise: Data Extraction

Exercise on extracting data from multi-dimensional arrays.

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Task

A data scientist wants to create a model where the input is a subset of data from a large data set. Because she is busy manipulating other variables for the model, she asked you to do a small task related to data extraction.

Your task is to extract a subset of the array from a two-dimensional array containing the stored data. The data scientist will then use that as the input for her model.

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