CRITERIA Subcommand (HILOGLINEAR command)

Use the CRITERIA subcommand to change the values of constants in the iterative proportional-fitting and model-selection routines for subsequent designs.

  • The default criteria are in effect if the CRITERIA subcommand is omitted (see below).
  • You cannot specify the CRITERIA subcommand without any keywords.
  • Specify each CRITERIA keyword followed by a criterion value in parentheses. Only those criteria specifically altered are changed.
  • You can specify more than one keyword on CRITERIA, and they can be in any order.

DEFAULT. Reset parameters to their default values. If you have specified criteria other than the defaults for a design, use this keyword to restore the defaults for subsequent designs.

CONVERGE(n). Convergence criterion. The default is 10-3 times the largest cell size, or 0.25, whichever is larger.

ITERATE(n). Maximum number of iterations. The default is 20.

P(n). Probability for change in chi-square if term is removed. Specify a value between (but not including) 0 and 1 for the significance level. The default is 0.05. P is in effect only when you request BACKWARD on the METHOD subcommand.

MAXSTEPS(n). Maximum number of steps for model selection. Specify an integer between 1 and 99, inclusive. The default is 10.

DELTA(d). Cell delta value. The value of delta is added to each cell frequency for the first iteration when estimating saturated models; it is ignored for unsaturated models. The default value is 0.5. You can specify any decimal value between 0 and 1 for d. HILOGLINEAR does not display parameter estimates or the covariance matrix of parameter estimates if any zero cells (either structural or sampling) exist in the expected table after delta is added.