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Your First 2D NumPy Array

Before working on the actual MLB data, let's try to create a 2D numpy array from a small list of lists.

In this exercise, baseball is a list of lists. The main list contains 4 elements. Each of these elements is a list containing the height and the weight of 4 baseball players, in this order. baseball is already coded for you in the script.

This exercise is part of the course

Introduction to Python

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Exercise instructions

  • Use np.array() to create a 2D numpy array from baseball. Name it np_baseball.
  • Print out the type of np_baseball.
  • Print out the shape attribute of np_baseball. Use np_baseball.shape.

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

import numpy as np

baseball = [[180, 78.4],
            [215, 102.7],
            [210, 98.5],
            [188, 75.2]]

# Create a 2D numpy array from baseball: np_baseball


# Print out the type of np_baseball


# Print out the shape of np_baseball
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