RHO Subcommand (AREG command)

RHO specifies the initial value of rho, an estimate of the first autoregressive parameter.

  • If RHO is not specified, the initial rho value defaults to 0 (equivalent to ordinary least squares).
  • The value specified on RHO can be any value greater than −1 and less than 1.
  • Only one rho value can be specified per AREG command.

Example

AREG VAR01 WITH VAR02 VAR03
  /METHOD=CO
  /RHO=0.5.
  • In this example, the Cochrane-Orcutt (CO) estimation method with an initial rho value of 0.5 is used.