[ADMB Users] training video basic operation

Arni Magnusson arnima at hafro.is
Wed Jan 18 10:46:48 PST 2012

I run into the same problem as Jacob, but only in Linux.

   [Windows] the test vector is  -99 100 -101
   [Linux]   the test vector is  0 0 0

The problem seems to caused by the .dat file, which contains Dos line 
endings. The short-term solution is to convert the line endings:

   $ dos2unix growth_loglike.dat

I hope the long-term solution will be to make ADMB data file parser more 
robust. To examine the problem I changed the model to

   init_int nobs
   !! SHOW(nobs);
   init_matrix vonBdata(1,nobs,1,2)
   !! SHOW(vonBdata);
   init_vector testvec(1,3)
   !! SHOW(testvec);

   init_number t0
   objective_function_value nll

   nll = square(t0-1.0);

   #define SHOW(x) cout << #x << ": " << x << endl;

It looks like the problem arises when three conditions are met:

   1. Model is run in Linux
   2. Data file has Dos line endings
   3. Data file has empty line between two comments

Thanks for reporting this problem, Jacob. You can use the 'dos2unix' shell 
command to fix the problem for now.


On Wed, 18 Jan 2012, Weihai Liu wrote:

> pretty sure your admb is broken, can you even run the simple.tpl which 
> in admb examples folder? The training example is fine after changing its 
> tpl name and the version will not be a issue for this kind testing.
> weihai
> On Wed, Jan 18, 2012 at 11:52 AM, Jacob Kasper <jacobkasper at gmail.com>wrote:
>> I am going through the training video and I keep getting errors with 
>> ADMB2 and onwards. I can run some tpl files but not the ones that are 
>> associated with the training video, even when I download fore example 
>> the files here 
>> ftp://glpd.fw.msu.edu/QFC/ADMB-Videos/Current_ADMB_Video_Release/ADMB%202/and 
>> change the .tpl so that the names is the same as the .dat. when I run 
>> the .tpl and then the program I get the message "the test vector is 0 0 
>> 0" which is not what the training video suggests that it should return. 
>> I have been over the .tpl file carefully and I cannot figure out the 
>> error, could this be a version issue? I am running Linux 64 bit and 
>> built it from the source distribution.
>> THank you
>> Jacob

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