Generating Discrete random variables with specified weights using SciPy or NumPy

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Drawing from a discrete distribution is directly built into numpy.
The function is called random.choice (difficult to find without any reference to discrete distributions in the numpy docs).

elements = [1.1, 2.2, 3.3]
probabilities = [0.2, 0.5, 0.3]
np.random.choice(elements, 10, p=probabilities)

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