Multiple Linear Stepwise Regression

3 次查看（过去 30 天）
Patrick Rungrugeecharoen
回答： Vimal Rathod 2019-7-31
I'm trying to get MATLAB to do stepwise regression for me and I know there's some functions out there like stepwiselm and stepwiseglm which does this.
My dependent variable is Y.
My independdent variables are X1, X2, X3 etc.
The stepwiselm and stepwiseglm functions im MATLAB gives me a regression model such as
Y = Beta(1)X1*X2 + Beta(2)*X(1) + Beta(3)*X(2) + Beta(4)*X(3) + C
whereas I'm after
Y = Beta(1)*X(1) + Beta(2)*X(2) + Beta(3)*(X3) + C
Tried changing modelspec to constant and linear as well.
Any help would be much appreciated!

请先登录，再回答此问题。

回答（1 个）

Vimal Rathod
Vimal Rathod 2019-7-31
You could use the upper and lower parameters in the stepwiselm and stepwiseglm functions to specify the set of independent variable terms to be present in the model equation.
Here is a link to a similar question:
https://www.mathworks.com/matlabcentral/answers/320038-stepwiseglm-modelspec-specified-as-linear-but-behaving-like-interactions?s_tid=answers_rc1-2_p2_MLT
Hope this helps!

类别

在 Help Center 和 File Exchange 中查找有关 Support Vector Machine Regression 的更多信息

标签

产品


版本

R2019a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by