[R] quasi glm start values

From: Lucy Crooks <Lucy.Crooks_at_env.ethz.ch>
Date: Fri 05 May 2006 - 02:24:17 EST


Hi,
I'm tying to fit a glm using quasi with variance=mu(1-mu) (to try and get "well behaved" residuals). I get an error message: "cannot find valid starting values, please specify some". I have tried using start= and specifying coefficients from a previous fit (with different error structure) but get the same message. What would be valid starting values?

I am using a 64 bit build R on a MacG5.

Thanks

Lucy Crooks
Theoretical Biology
Universitätstrasse 16
ETH Zentrum, CHN 75.1
CH-8092 Zurich

Tel.: 0041 44 632 8326
Fax: 0041 44 632 1271

http://www.eco.ethz.ch/

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