It can be useful to visualize the sigmoid function, the key characteristic of a logistic regression model (Figure 1). The purpose of the function is to transform a probability (as a real number) into ...

; A logistic regression for these data is a generalized linear model with response equal to the binomial proportion r/n. The probability distribution is binomial, and the link function is logit. For ...

The CATMOD procedure can perform linear regression and logistic regression of response functions for data that can be represented in a contingency table. See Chapter 5, "Introduction to Categorical ...