Polynomial Regression Flashcards

1
Q

Centre the predictor variable

A

(cx) subtracting the mean of the predictor variable from each value of the predictor variable. Allowing for more stable model fitting.

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2
Q

Difference of polynomial regression to multiple regression.

A

Polynomial regression is fitting of a curved line model to a dataset with only 1 type of predictor variable. Compared to fitting a line to multiple predictor values.

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