As a random effect module

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Saang-Yoon

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Oct 27, 2014, 7:42:49 PM10/27/14
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Hi. 
My TPL  file looks to work, generating its COR file.   Even though its  COR file is generated, I get the warning message: i.e.,
Warning -- Hessian does not appear to be positive definite.  
And I confirm some correlation coefficients in the COR file are less than -1.0 (i.e., they do not make a sense).   Would you mind checking my TPL file to correct it?   

Attached are TPL, DAT, and PIN files.   The following commands are what I used for compile-link, and applied its resultant executable file to the data.

admb -r -s ssmbr3v3.tpl

ssmbr3v3 -ind sim3.dat -ainp ssmbr3v2.pin -phase 1 -noinit

Best Wishes,
Saang-Yoon
ssmbr3v3.TPL
sim3.DAT
ssmbr3v2.PIN

dave fournier

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Oct 28, 2014, 10:03:20 AM10/28/14
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On 10/27/2014 04:42 PM, Saang-Yoon wrote:

you need to bound the correlation away from -1 and 1 a bit.

This converges nicely.

 init_bounded_number cor12(-0.98,0.98,4);



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Saang-Yoon

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Oct 28, 2014, 4:29:27 PM10/28/14
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Hi, Dr. Fournier.
Thank you very much for your help.   Yes, it nicely works!!!   Best Wishes,
Saang-Yoon

Larry Jacobson

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Oct 28, 2014, 7:51:12 PM10/28/14
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Hi Saang-

Their is an ADMB version now with a function that prints out the gradients for all parameters at the end of each pahse along with their current value and, most importantly, the name of the variable.  I think this will be in the next release but you can probably ask Johnoel to hook you up with it now.  The gradient output file makes it very easy to find the problematic parameters (no more looking at the gradients printed to the screen without names or trying to make inferences based on the cor file).  This is something Dave Fournier and Jiashen  Tang here at the Northeast Fisheries Science Center put together.

Cheers!
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Saang-Yoon

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Oct 28, 2014, 9:53:20 PM10/28/14
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Hi, Dr. Larry Jacobson.
Thank you very much for your info and kind explanation.   Best Wishes,
Saang-Yoon
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