The following statements are available in the INBREED procedure:
PROC INBREED <options>;
BY variables;
CLASS variable;
GENDER variable;
MATINGS individual-list1 / mate-list1 <, …, individual-listn / mate-listn>;
VAR variables;
The PROC INBREED statement is required. Items within angle brackets (< >) are optional. The syntax of each statement is described in the following sections.