Hi Gudrun,

try the following:

y <- rbinom(100, 1, 0.5)
x <- rnorm(100)
##############
glm(y~x, family=binomial)
glm(y~x-1, family=binomial)

I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/16/336899
Fax: +32/16/337015
Web: http://www.med.kuleuven.ac.be/biostat
    http://www.student.kuleuven.ac.be/~m0390867/dimitris.htm


----- Original Message ----- From: "Gudrun Jonasdottir" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, January 07, 2005 3:40 PM
Subject: [R] glm fit with no intercept



Dear R-help list members,

I am currently trying to fit a generalized linear model using a binomial
with the canonical link. The usual solution is to use the R function glm()
in the package "stats". However, I run into problem when I want to fit a
glm without an intercept. It is indicated that the solution is in changing
the function glm.fit (also in "stats"), by specifying intercept=FALSE. I
have not been successful in getting any output though.


Any suggestion on how to fit a glm with no intercept?

Regards,
Gudrun

--
Gudrun Jonasdottir, M.Sc.
Matematiska institutionen
Stockholms Universitet
SE- 106 91 Stockholm

Work: +46 (0)8 16 45 56
Mobile: +46 (0)709 779 800
--------------------------------------------
"N�r inget annat hj�lper, l�s instruktionsboken."
- Canns axiom

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