Modeling and Multivariate Methods - SAS

112 Fitting Standard Least Squares Models Chapter 3
Effect Options
Figure 3.47 LSMeans Contrast Report
The Contrast report shows the following:
• Contrast as a function of the least squares means
• Estimates and standard errors of the contrast for the least squares means
• t-tests for each column of the contrast
• F-test for all columns of the contrast tested jointly
• Parameter Function report that shows the contrast expressed in terms of the parameters. In this example,
the parameters are for the ordinal variable, age.
LSMeans Student’s t and LSMeans Tukey’s HSD
The LSMeans Student’s t and LSMeans Tukey’s HSD options give multiple comparison tests for model
effects. For details about these tests, see the Basic Analysis and Graphing book.
The red triangle options that appear in each report window show or hide optional reports.
Table 3.13 Description of the LSMeans Student’s t and LSMeans Tukey’s HSD Options
Crosstab Report
Connecting Letters
Report
A two-way table that highlights significant differences in red.
Illustrates significant differences with letters (similar to traditional SAS
GLM output). Levels not connected by the same letter are significantly
different.