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Practical Predictive Analytics
book

Practical Predictive Analytics

by Ralph Winters
June 2017
Beginner to intermediate content levelBeginner to intermediate
576 pages
15h 22m
English
Packt Publishing
Content preview from Practical Predictive Analytics

Comparing AIC among the candidate models

As mentioned in earlier chapters, AIC is a metric that you can use to help you select a model. The plotty='T' option also produced a plot of the AICs for the top models found. In the function call, we indicate that we wanted to see up to five.

According to the author of the package, a reasonable rule of thumb is to consider models that fall below the horizontal red line.

According to that definition, that would eliminate models 4 and 5, and leave models 1, 2, and 3 to consider.

Here is the plot of the AICs for the top five models:

 

We can also specify a variable importance plot by using the plot statement ...

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Publisher Resources

ISBN: 9781785886188Supplemental Content