[ADMB Users] -ndb

[H. Skaug]

Hi,

If you grep for the error message in the source you get the
following printout. To help interpretation I can say
that
xsize = # fixed effects
usize = # random effects

>From the inequality "nvariables/num_der_blocks<xsize"
you can figure out the maxium value of "num_der_blocks".

xsize = 4
usize = 100

num_der_blocks= 104/4 = 26.
I do not know the rationale for this.

Hans

df1b2lap.cpp:

  nvariables=xsize+usize;
  int rem=0;
  if (nvariables%xsize!=0)
    rem=1;

  if (nvariables/num_der_blocks<xsize)
  {
    cerr << " Error -- the number of der blocks (-ndb) can not be larger than "
         << nvariables/xsize << endl;
    ad_exit(1);
  }





On 2/19/12, Mark Maunder <mmaunder at iattc.org> wrote:
> If I use "-ndb 10" command line option in a RE model I get the error
>
> Error -- the number of der blocks (-ndb) can not be larger than 1
>
> So then I try "-ndb 0.1" and get the error
>
> Usage -ndb option needs positive integer  -- ignored
>
> These two error statements contradict each other. Does anyone have any
> ideas?
>
> Thanks,
>
> Mark
>
>
>
> Mark Maunder
>
> IATTC fall workshop: Using Oceanography for Fisheries Stock Assessment and
> Management
> 11-14 October 2011, La Jolla, CA
> http://www.fisheriesstockassessment.com/TikiWiki/tiki-index.php?page=Using+Oceanography+for+Fisheries+Stock+Assessment+and+Management+2011
>
>
>
>
> Head of the Stock Assessment Program
> Inter-American  Tropical Tuna Commission
>
> President
> ADMB Foundation
>
> 8604 La Jolla Shores Drive
> La Jolla, CA, 92037-1508, USA
>
> Tel: (858) 546-7027
> Fax: (858) 546-7133
> mmaunder at iattc.org<mailto:mmaunder at iattc.org>
> http://www.fisheriesstockassessment.com/TikiWiki/tiki-index.php?page=Mark+Maunder
>
> Visit the AD Model Builder project at
>  http://admb-project.org/
>
> See the following website for information on fisheries stock assessment
> http://www.fisheriesstockassessment.com/
>
>
>