Polynomial Regression Spss. To run a polynomial regression model add the new variable agecent2 as shown in figure 4. The curvefit procedure found under analyze regression curve estimation offers linear quadratic and cubic curves but only for a single variable.
To run a polynomial regression model add the new variable agecent2 as shown in figure 4. Yi a b1xi b2xi2 b3xi3 bkxik ei created by the its training. Please note that a polynomial regression analysis is a sequential analysis.
Select statistics from the options on the right of the text box.
Selecting polynomial regression from the analyze menu in spss. This type of regression involves fitting a dependent variable yi to a polynomial function of a single independent variable xi. Polynomial regression are the quadratic 2 1 2 yˆ a bx and the cubic 3 3 2 1 2 yˆ a bx. The curvefit procedure found under analyze regression curve estimation offers linear quadratic and cubic curves but only for a single variable.
