Select test questions

[Hhh280zi]

suite_name = 'bbob';
observer_name = 'bbob';
observer_options = strcat('result_folder: RS_on_', ...
suite_name, ...
[' algorithm_name: RS '...
' algorithm_info: A_simple_random_search ']);

% initialize suite and observer with default options,
% to change the default, see
% http://numbbo.github.io/coco-doc/C/#suite-parameters and
% http://numbbo.github.io/coco-doc/C/#observer-parameters
% for details.
suite = cocoSuite(suite_name, '', '');
observer = cocoObserver(observer_name, observer_options);

suite = cocoSuite(suite_name, '', '');
Here I just want to select the F2 test function in the bbob test problem for testing. How should I write it?

I tried the following method, but it still runs from F1
suite = cocoSuite(suite_name, 'function_indices: 2 ', '');

[brockho]

Here I just want to select the F2 test function in the bbob test problem for testing. How should I write it?

ff = suite.get_problem_by_function_dimension_instance(2, 5, 1)  # instance 1 of f2 in dimension 5
ff([0]*5)  # evaluate origin

[fake-touch]

Here I just want to select the F2 test function in the bbob test problem for testing. How should I write it?

ff = suite.get_problem_by_function_dimension_instance(2, 5, 1)  # instance 1 of f2 in dimension 5
ff([0]*5)  # evaluate origin

What does this line of code do? Which line is the specific? What does it do?

[brockho]

ff = suite.get_problem_by_function_dimension_instance(2, 5, 1)  # instance 1 of f2 in dimension 5
ff([0]*5)  # evaluate origin

What does this line of code do? Which line is the specific? What does it do?

Hi again. The code, I pasted, does exactly what you wanted: extract the single function instance 1 of f2 in dimension 5 and evaluate the origin on this function (= test the function). You can also test the function by optimizing it like for example

import cma, cocoex
suite = cocoex.Suite('bbob', '', '')
ff = suite.get_problem_by_function_dimension_instance(2, 5, 1)
cma.fmin2(ff, [0]*5, 1)