ZZZZ09, ZQZQ00 through ZQZQ09, in that sequence. In addition, Z score
variable names can be specified explicitly on @subcmd{VARIABLES} in the variable
list by enclosing them in parentheses after each variable.
+When Z scores are calculated, @pspp{} ignores @cmd{TEMPORARY},
+treating temporary transformations as permanent.
The @subcmd{STATISTICS} subcommand specifies the statistics to be displayed:
@cindex bivariate logistic regression
@display
-LOGISTIC REGRESSION [VARIABLES =] @var{dependent_var} WITH @var{var_list}
+LOGISTIC REGRESSION [VARIABLES =] @var{dependent_var} WITH @var{predictors}
+
+ [/CATEGORICAL = @var{categorical_predictors}]
[@{/NOCONST | /ORIGIN | /NOORIGIN @}]
[/PRINT = [SUMMARY] [DEFAULT] [CI(@var{confidence})] [ALL]]
[/CRITERIA = [BCON(@var{min_delta})] [ITERATE(@var{max_interations})]
- [LCON(@var{min_likelihood_delta})] [EPS(@var{min_epsilon})]]
+ [LCON(@var{min_likelihood_delta})] [EPS(@var{min_epsilon})]
+ [CUT(@var{cut_point})]]
[/MISSING = @{INCLUDE|EXCLUDE@}]
@end display
+ \dots
+ b_n {\bf x_n}
}
+
+Predictor variables which are categorical in nature should be listed on the @subcmd{/CATEGORICAL} subcommand.
+Simple variables as well as interactions between variables may be listed here.
+
If you want a model without the constant term @math{b_0}, use the keyword @subcmd{/ORIGIN}.
@subcmd{/NOCONST} is a synonym for @subcmd{/ORIGIN}.
An iterative Newton-Raphson procedure is used to fit the model.
-The @subcmd{/CRITERIA} subcommand is used to specify the stopping criteria of the procedure.
+The @subcmd{/CRITERIA} subcommand is used to specify the stopping criteria of the procedure,
+and other parameters.
+The value of @var{cut_point} is used in the classification table. It is the
+threshold above which predicted values are considered to be 1. Values
+of @var{cut_point} must lie in the range [0,1].
During iterations, if any one of the stopping criteria are satisfied, the procedure is
considered complete.
-The criteria are:
+The stopping criteria are:
@itemize
@item The number of iterations exceeds @var{max_iterations}.
The default value of @var{max_iterations} is 20.
The default value of @var{min_epsilon} is 0.00000001.
@end itemize
+
The @subcmd{PRINT} subcommand controls the display of optional statistics.
Currently there is one such option, @subcmd{CI}, which indicates that the
confidence interval of the odds ratio should be displayed as well as its value.