[R] weibull model

From: boshao zhang <zboshao_at_yahoo.com>
Date: Wed, 19 Mar 2008 10:45:43 -0700 (PDT)


Dear Helpers:

If you know how to fit a Weibull model using R, you are my savior for my project. The hazard ramda is specified as t^alpha * (1+a*dose*exp(-b*dose)). Or, can we modify the Cox model to capture the proportional part above? Here t is the survial time, dose is a subject received in a exposed group.

Thank you a lot.

Boshao



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