Football Analytics with Python & R by Eric A. Eager & Richard A. Erickson

Author:Eric A. Eager & Richard A. Erickson [Eric A. Eager]
Language: eng
Format: epub
Publisher: O'Reilly Media, Inc.
Published: 2023-11-25T00:00:00+00:00

Warning

The coefficients and predictions from a Poisson regression depend upon the scale for the mathematical link function, just like the logistic regression in “A Brief Primer on Odds Ratios”. “Understanding Poisson Regression Coefficients” provides a brief primer on understanding the outputs from a Poisson regression.

Look at the coefficients and let’s interpret them here. For the Poisson regression, coefficients are on an exponential scale (see the preceding warning on this topic for extra details). In Python access the model’s parameters and than take the exponential using the Numpy library (np.exp()):

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