problem with failing unit test in stk : any ideas ?

[Julien Bect]

Hello all,

I have a failing unit test in the stk package that I don't understand.

If I type in Octave (I've tried 3.8.1 and 4.0.0+, same result):

   pkg load stk
   test stk_example_kb09

I get the following error:

   ***** test HOMOSCEDASTIC_NOISE = false;  stk_example_kb09;  close all;
   !!!!! test failed
   'HOMOSCEDASTIC_NOISE' undefined near line 60 column 4

The relevant lines in stk_example_kb09 are:

   % Default: homoscedastic noise
   if ~ exist ('HOMOSCEDASTIC_NOISE', 'var')
      HOMOSCEDASTIC_NOISE = true;
   end

   % Standard deviation of the noise
   if HOMOSCEDASTIC_NOISE
      NOISE_STD_FUNC = @(x) 0.5;
   else
      NOISE_STD_FUNC = @(x) (0.1 + (x + 1) .^ 2);
   end

Any ideas ?

@++
Julien