Workspace Node: GLZ Custom Design - Specifications - Model Specification Tab

In the GLZ Custom Design node dialog box, under the Specifications heading, select the Model Specification tab; the specific options that are available depend on the Type of analysis selected on the Quick tab

Element Name Description
Variables Click this button to display a variable selection dialog box. Depending on the Type of analysis selected on the Advanced tab, Statistica prompts you to select one or more dependent (response) variables, one or more categorical predictor variables (grouping variables or factors in the design), and/or one or more continuous predictor variables (covariates); if the chosen Distribution on the Quick tab was either Binomial, Multinomial, or Ordinal multinomial, you can also specify an optional Count variable (for aggregated data). For details concerning different types of designs and the distinction between continuous and categorical predictor variables, see also the Introductory Overview of the GLM module.
Factor codes Click this button to display the Select codes for independent variables (factors) dialog box, which is used to select the codes identifying the levels for the categorical predictor variables (grouping variables). Codes must be integer values or text labels (but can be dates, times, etc.), and at least two codes must be specified for each categorical predictor variable. This button is only available if categorical predictor variables (grouping variables) were specified for the current analysis.
Response codes Click this button to display the Select two codes for the binomial response dialog box, which contains options to select the codes identifying the levels or categories for the categorical (binary) dependent (response) variables. Codes must be integer values or text labels (but can be dates, times, etc.), and at least two codes must be specified. This button is only available if the dependent (response) variables is categorical in nature, i.e., if the chosen Distribution on the Quick tab was either Binomial, Multinomial, or Ordinal multinomial.
Note: response codes for binomial response variables. When selecting response codes for binomial response variables (e.g., for logit models), the two selected values (numeric codes or text values) are recoded for the analysis, so that the first code that  is specified will be recoded to 1, and the second value will be recoded to 0. For example, if you specified two text values No and Yes, the first value (No) will be recoded for the analysis to 1, and the parameter estimates can be interpreted with respect to the probability of responding with No; so, if in such an analysis a positive parameter estimate is found for a particular predictor variable x¸ it means that the more of x the greater is the likelihood of obtaining the response No. Note that the default coding for binomial response variables in the Nonlinear Estimation module may not be the same as that performed in GLZ. One way to verify the particular coding that was performed is to review the spreadsheet of the predicted responses via the Residual 1 tab of the results dialog; that spreadsheet will report in the first column the recoded values (0 or 1) of the response variable.
Note: reference level for categorical dependent (response) variables. The last category (level) specified via the codes will be the reference category for the comparisons with the other categories. So, for example, if a multinomial dependent (response) variable with k = 3 levels is analyzed, the k-1 = 2 parameters for each predictor (effect column) pertain to the comparison of (1) the first level with the last level, and (2) the second level with the last level of the dependent (response) variable.
Between effects Click this button to display the GLM Between Effects dialog box. Use these options to specify a custom design for the categorical and continuous predictor variables. If the variable selection includes multiple categorical variables, the default design is main effects only. This is reflected in the text displayed in the text box next to the Between effects button.

Options / C / W. See Common Options.

OK Click the OK button to accept all the specifications made in the dialog box and to close it. The analysis results will be placed in the Reporting Documents node after running (updating) the project.