I'd like to fit a multinomial log-linear model for 4 categories of the
form
log[(P(D=i | X)/P(D=0 | X)] = alpha_i + X beta_i ; i=1,2,3
but with beta_1 constrained to zero. Is there a way to impose such a
constraint in the multinom function?
Brad
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Brad McNeney email: mcneney at stat.sfu.ca
Dept. of Statistics and Actuarial Sci. web: www.stat.sfu.ca/~mcneney/
Simon Fraser University phone: 604.291.4815
8888 University Drive fax: 604.291.4368
Burnaby, British Columbia
Canada V5A 1S6
