[R] tan(mu) link in GLM

(Ted Harding) Ted.Harding at nessie.mcc.ac.uk
Fri Apr 2 15:47:55 CEST 2004

Hi Folks,

I am interested in extending the repertoire of link functions
in glm(Y~X, family=binomial(link=...)) to include a "tan" link:

   eta = (4/pi)*tan(mu)

i.e. this link bears the same relation to the Cauchy distribution
as the probit link bears to the Gaussian. I'm interested in sage
advice about this from people who know their way aroung glm.

>From the surface, it looks as though it might just be a matter
of re-writing 'make.link' in the obvious sort of way so as to
incorporate "tan", but I fear traps ...

What am I missing?

With thanks,

E-Mail: (Ted Harding) <Ted.Harding at nessie.mcc.ac.uk>
Fax-to-email: +44 (0)870 167 1972
Date: 02-Apr-04                                       Time: 14:47:55
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