Differences between stepwisefit and robustfit?

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Leon 2016-6-29

编辑： Rohit Reddy Madasani 2016-7-13

I am trying to do a linear regression between y (100x1) against X (100x5 variable 1,2,3,4,and 5).

What is the best linear regression method I should use: Robustfit or Stepwisefit?

Many thanks.

Rohit Reddy Madasani 2016-7-13

编辑：Rohit Reddy Madasani 2016-7-13

Hi Leon,

Your choice of model depends on precisely what you are trying to explain. You should have some a priori knowledge that explains

1.Why you are creating a model.

2.What you think that the relationship between the variables should be modeled as.

3.Why you think that the relationship between the variables should be modeled.

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