Corrections R-commands: In 8.4.5 use ¡­

Corrections R-commands: In 8.4.5 use "age=c(0,b[2:7]); gender=c(0,b[8])" and in Exercise 8.5.4a two of the commands should be changed to "z=n[row(n)+col(n)<=L+2" and v=~glm(a+b+offset(log(rep(JT,length(z)))),poisson)