Notes on Implementation of Regression Models
Regression Models
Regression is a powerful tool and is widely used in studying the relationships among the variables. A number of regression models were discussed in this book. These models are summarized here:
Simple linear regression |
y = β0 + β1x + ɛ |
Multiple regression |
y = β0 + β1x1 + β2x2 + … + βkxk + ɛ |
Polynomial regression (second-order models can be extended to higher order model) |
Second-order polynomial:
Higher order polynomial:
|
Interaction models |
An interaction model relating ... |
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