Applies to:

StatTools 6.x and Up

Error:

"The data set where the predictions will be made cannot be the data set used to perform the regression."

 

Cause:

When doing a regression in StatTools with Include Prediction for Data Set enabled, you need 2 datasets to use the results of the regression to do predictions.

 

Solution:

1. First, specify the regression data set on the Variables tab of the Regression dialog (or on the second screen of the wizard).
   1. The regression data set contains your independent and dependent variable data.
2. Specify the prediction data set on the Options tab of the Regression dialog.
   1.  The prediction data set must contain the same independent and dependent variables that you're using in the regression.
3. After computing the regression, StatTools will use the regression equation to predict dependent variable values for the independent variable values in the prediction data set.