Example: In order to predict the next twelve-month’s maintenance and repair expenses for a specific one-year-old Ford currently in the motorpool, we’d first perform a regression analysis using age and ...

This is called an interaction between the explanatory variables. A simple step towards a better model ... the difference between the associated value, and the base case.) Example: To include ...

have presented a number of analyses to assess the effects of various explanatory variables on the survival of patients. This example fits two of the models that they have considered.

The procedure uses the branch and bound algorithm of Furnival and Wilson (1974) to find a specified number of best models containing one, two, three variables and so on, up to the single model ...

Economists develop economic models to explain consistently recurring relationships. Their models link one or more economic variables to other economic variables. For example, economists connect the ...