Message-ID: <D8457815528063439E5066EE2475CF1C0A4B7EC3C8@UQEXMB04.soe.uq.edu.au>
Date: 2011-09-16T06:45:27Z
From: Javier Leon Patino
Subject: singular model fit
Thanks for answering.
I have added points at shorter distances to my dataset. Now I can observe a hole effect in the variogram (periodicity due to elevation coming from 1 mountain I suppose). I can fit a variogram on residuals from a linear regression nicely and even fit a gaussian variogram in ln_depth. However, if I try to fit other models the sofware wont converge.
How can I get around this issue? Does it make sense to limit the range or psill? I can send the new dataset if requested...
Thanks for your help.
Javier