|The BTL Procedure|
The following statements are available in PROC BTL.
Items within angle brackets (<> ) are optional. The RANDOM statements can appear multiple times; all other statements can appear only once.
The PROC BTL, MARKER, and MODEL statements are required, and the MODEL statement must appear after the CLASS and/or MARKER statement if either or both statements are included. The RANDOM and REPEATED statements must follow the MODEL statement.
Note: This procedure is experimental.