dear Christofer,

Try the following

d<-expand.grid(a=1:3,b=1:4)
d$freq<-rpois(12,5)
o<-glm(freq~factor(a)+factor(b)+I(a*b), family=poisson, data=d)

vito


Il 02/04/2012 9.34, Christofer Bogaso ha scritto:
Dear all, can somebody give me some pointer how I can fit a
"linear-by-linear association model" (i.e. loglinear model for the
ordinal variables) in R? A brief description can be found here
'https://onlinecourses.science.psu.edu/stat504/node/141'.

Thanks for your help

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====================================
Vito M.R. Muggeo
Dip.to Sc Statist e Matem `Vianelli'
Università di Palermo
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