Modeling and Multivariate Methods - SAS

Chapter 3 Fitting Standard Least Squares Models 55
Example Using Standard Least Squares
Example Using Standard Least Squares
You have data that contains the responses of 30 subjects after treatment by three drugs (Snedecor and
Cochran 1967). You want to use the Standard Least Squares personality of the Fit Model platform to test
whether there is a difference in the mean response among the three drugs.
1. Open the Drug.jmp sample data table.
2. Select Analyze > Fit Model.
See the chapter “Introduction to the Fit Model Platform” on page 31, for details about the Fit Model
launch window.
3. Select y and click Y.
When you select the column y to be the Y response, the Fitting Personality becomes Standard Least
Squares and the Emphasis is Effect Leverage. You can change these options in other situations.
4. Select Drug and x. Click Add.
Figure 3.2 Completed Fit Model Launch Window
5. Click Run.