ABSTRACT

The logit of a probability is simply the log of the odds of the response taking the value one. Equation 7.1 can be rewritten as

x x

x x q q

q q pi =

β +β + β + β +β + β exp( )

1 exp( ) 0 1 1

… …

(7.2)

Parameters in the model are estimated by maximum likelihood; details are given in Collett (2003).