ORIGIN and NOORIGIN Subcommands (LOGISTIC REGRESSION command)

ORIGIN and NOORIGIN control whether the constant is included. NOORIGIN (the default) includes a constant term (intercept) in all equations. ORIGIN suppresses the constant term and requests regression through the origin. (NOCONST can be used as an alias for ORIGIN.)

• The only specification is either ORIGIN or NOORIGIN.
• ORIGIN or NOORIGIN can be specified only once per Logistic Regression procedure, and it affects all METHOD subcommands.

Example

LOGISTIC REGRESSION VARIABLES=PASS WITH GPA,GRE,MAT /ORIGIN.

• ORIGIN suppresses the automatic generation of a constant term.