Exercise

Plotting fitted values

Using the previously fitted Poisson regression model of horseshoe crab data with sat as the response and width as the explanatory variable you will visually assess the model fit and compare to the previously visualized linear model.

The crab data and Poisson regression model saved as model are loaded in the workspace.

Instructions 1/2

XP

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2

Extract the fitted values and add them to the crab dataframe as a new fit_values column.