Hi! I am using the stepwise (and forward) selection criteria just to narrow down the variables that I use in the formal regression analysis that I use. However, a frequent problem that I have been running into is having variables in the final given model from the stepwise selection criteria with the unexpected sign, creating statistically insignificant results. With this, I was wondering if there is a way to code for this, so if the parameter estimate has a variable with the unexpected sign, it can be taken out of the model, and replaced with others. I am using the "proc reg" procedure for this. Thank you!
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