ackley_function         Generator for the Ackley function.
bbob2009_function       (Noisy) BBOB 2009 test function generator.
branin_function         Generatore for the Branin test function.
counting_function       Return a new function which is identical to the
                        'soofunction' passed in except that all
                        function evaluations are counted.
discus_function         Discus test function generator.
double_sum_function     Double sum test function generator.
ellipsoidal_function    Generator for ellipsoidal test functions.
function_id             Get a short id for the function that can be
                        used in filenames and such.
function_name           Get a pretty function name for a benchmark
                        function.
global_minimum          Retrieve the global minimum of a function.
goldstein_price_function
                        Generator for the Goldstein-Price function.
griewank_function       Griewank test function generator.
is_soo_function         Check if a function is a SOO function.
kotancheck_function     Kotancheck test function generator.
lower_bounds            Retrieve the lower or upper bounds of a test
                        function.
mexican_hat_function    Mexican hat test function generator.
number_of_evaluations   Return the number of times a test function has
                        been evaluated.
number_of_parameters    Return the parameter space size of a function.
plot.soo_function       Plot a test function in 2D.
plot3d                  Plot a test function in 3D.
print.soo_function      Print a SOO function.
random_parameters       Generate random parameters for a given
                        function. Given a test function 'fn', generate
                        'n' random parameter settings for that
                        function.
random_rotation_matrix
                        Generate a random 'd'-dimensional rotation
                        matrix.
rastrigin_function      Rastrigin test function generator.
reset_evaluation_counter
                        Reset the evaluation counter of a test
                        function.
rosenbrock_function     Rosenbrock test function generator.
rotate_parameter_space
                        Rotate the parameter space of a SOO function.
soo_function            Define a new 'soo_function' object.
sphere_function         Sphere test function generator.
weierstrass_function    Generator for the Weierstrass function.
