The following statements are available in the CAUSALTRT procedure. Items within <> are optional.
PROC CAUSALTRT <options>;
BOOTSTRAP < options > ;
BY variables;
CLASS variables <(options)> …<variable<(options)>> </ global-options>;
FREQ variable;
MODEL outcome <(variable-options)><= <effects>> </ model-options>;
OUTPUT <OUT=SAS-data-set> <keyword=name …keyword=name>;
PSMODEL treatment <(variable-options)><= effects </ psmodel-options>>;
The PROC CAUSALTRT, MODEL, and PSMODEL statements are required. The CLASS statement, if present, must precede the MODEL and PSMODEL statements. All statements can appear only once.
All the estimation methods implemented in PROC CAUSALTRT require the specification of both an outcome and a treatment variable. You specify the outcome variable in the MODEL statement and the treatment variable in the PSMODEL statement. In the MODEL and PSMODEL statements, you can use the same syntax to specify main effects and interaction terms for modeling the outcome and treatment assignment. This syntax is described in the section Specification of Effects in Chapter 53, The GLM Procedure. For more information about which model specifications are required for different estimation methods and how default estimation methods are determined, see the section Outline of Estimation Method Requirements. The following sections describe the PROC CAUSALTRT statement and then describe the other statements in alphabetical order.