Link Function

Use the radio buttons to specify the function used to model the probabilities of the Dependent Class Variable.

Choose from complementary log-log, cumulative logit, generalized logit, or probit. Refer to the table below for details.

Option	Definition
CLOGLOG	Specifies the complementary log-log function. PROC SURVEYLOGISTIC fits the binary complementary log-log model for binary response and fits the cumulative complementary log-log model when there are more than two response categories.
CUMLOGIT	Specifies the cumulative logit function. PROC SURVEYLOGISTIC fits the binary logit model when there are two response categories and fits the cumulative logit model when there are more than two response categories.
GLOGIT	Specifies the generalized logit function. PROC SURVEYLOGISTIC fits the generalized logit model where each nonreference category is contrasted with the reference category.
PROBIT	Specifies the inverse standard normal distribution function. PROC SURVEYLOGISTIC fits the binary probit model when there are two response categories and fits the cumulative probit model when there are more than two response categories.

To Specify How the Link Function to Be Used:

Make sure that Automated has been selected as the analysis Mode.

Select the desired method by clicking within the appropriate radio button.

Refer to either the SAS PROC LOGISTIC or the SAS PROC SURVEY LOGISTIC documentation for more information.