Nominal Logistic Regression - Options
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Stat > Regression > Nominal Logistic Regression > Options

Provides options that allow you to choose the reference level and event, and specify starting values.

Dialog box items

Reference Options

Reference event: Enter the reference event if you want to change the default event. (Text and date/time levels must be enclose in quotes.) For information on why you might want to change the reference event, see Interpreting the parameter estimates.

Reference factor level (enter factor followed by level): Enter the factor column followed by the reference level if you want to change the default level. (Text and date/time levels must be enclose in quotes.) For information on why you might want to change the reference event, see Interpreting the parameter estimates.

Algorithm Options

Starting estimates for algorithm: Enter the column containing the initial values for model parameters. Specify initial values for model parameters or parameter estimates for a validation model. See Entering initial values for parameter estimates.

Estimates for validation model: Enter the column containing the estimated model parameters. Minitab will then fit the validation model. See Entering initial values for parameter estimates.

Maximum number of iterations: Change the maximum number of iterations that Minitab will perform to reach convergence. The default value is 20. Minitab's logistic regression commands obtain maximum likelihood estimates through an iterative process. If the maximum number of iterations is reached before convergence, the command terminates.