Changing the Estimation Parameters
You can change any of the estimation parameters using the options on the Home tab. The changes do not take effect until you run the estimation again.
To use the new parameters, you can click Estimate . The Estimation Model Over-Write Warning form appears prompting you to select whether you want to Over-write the current model or Create a new model. To use the changed parameters to create a new model, you can also click Add Model before you click Estimate.
You can save a set of estimation parameters to use in a later session, or with another data set.