Generalized estimating equations (Liang, K. Y. and Zeger, S., 1986, Biometrika 73, 13-22) allow longitudinal or clustered data to be modeled with minimal assumptions about their dependence structures.

Macrocausal analysis is often characterized as following only a single strategy of causal inference. In fact, however, at least three different techniques are used: nominal, ordinal, and narrative ...

The data for this example are from Ezzet and Whitehead (1991), who describe a crossover experiment on two groups of patients using two different inhaler devices (A and B). Patients from group 1 used ...

Example 29.4: Ordinal Model for Multinomial Data This example illustrates how you can use the GENMOD procedure to fit a model to data measured on an ordinal scale. The following statements create a ...