how to check the 'contribution' of each predictor in a linear regression
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I have linear regression model, say with 5 predictors,
. I wanted to know how we can perform tests regarding the 'contribution' of each predictor.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/195616/image.png)
Does matlab have a function that tests all possible subsets of predictors and outputs the error?
Thanks
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Accepted Answer
Star Strider
on 19 Nov 2018
You are describing a stepwise multiple linear regression. Seee the documentation on the stepwiselm (link) function and its friends for details.
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