1. Learn
    2. /
  2. Courses
    3. /
  3. Generalized Linear Models in R

Exercise

Fitting a Poisson regression in R

In this exercise, you will fit a Poisson regression using glm(). GLMs in R use the same formula notation as linear models: response ~ predictor. However, the model also requires the error or distribution family to be specified with the family = ... argument. To fit a Poisson regression, set family equal to "poisson" (make sure to include the quotes " around poisson).

You will use a simulated dataset with a predictor variable time and response count.

A real dataset could be number of points scored, clicks on a webpage, or birds you see out your window.

Instructions

100 XP
  • Using data.frame dat, fit a Poisson regression where count is predicted by time with the poisson family. Save the model as poisson_out.
  • Print poisson_out to the screen.