Re: [R] Left censored responses in mixed effects models

From: Gregor Gorjanc <gregor.gorjanc_at_bfro.uni-lj.si>
Date: Mon, 12 May 2008 19:23:00 +0000 (UTC)

Bert Gunter <gunter.berton <at> gene.com> writes:
> Dear R Fellow-Travellers:
>
> What is your recommended way of dealing with a left-censored response
> (non-detects) in (linear Gaussian) mixed effects models?

Your description of the data calls for a tobit model

http://en.wikipedia.org/wiki/Tobit_model

I think you need to take a look in the survival package.

Regards, Gregor



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