[ADMB Users] matrix not positive definite

[Mollie Brooks]

Thanks for the response.

I'm attaching the code and a tiny simulated data set. I can send a larger simulated dataset if it helps. I also attached the R code I used to simulate the data. 

The attached pdf contains the formula for the variance covariance matrix as "Process Error". The "Predictions" are temporally autocorrelated latent variables that determine the Bernoulli process of whether or not there is water in the pond.
thanks,
Mollie
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Mollie Brooks
Postdoctoral Researcher, Ponciano Lab
Biology Department, University of Florida
http://people.biology.ufl.edu/mbrooks


On 10 Feb 2013, at 11:54 AM, dave fournier wrote:

> Hard to say much that isn't probably wrong without seeing your code etc.
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