Example: Function call: avg_max_dev(matrix_1, matrix_2).

 

matrix_1:

 

 

matrix_2:

 

 

at point_1:

 

 

MATLAB code (.\Aorda\PSG\MATLAB\Examples\Functions\Func_value_avg_max_dev.m) for function calculation:

 

addpath('..')

%Define data:

H1 = [1 4 8 3;7 -5 4 -6];

header_1 = {'x1', 'x2', 'x3', 'x4'};

c1 = [-2;11];

p1 = [0.4;0.6];

H2 = [2 -1 1;-3 6 -7];

header_2 = {'x1', 'x2', 'x4'};

c2 = [-5;-1];

a = [1;1;1;1];

%=======================================================================

%Calculation of function with PSG Subroutine 'tbpsg_function_value'

%Create the PSG matrix 'matrix_1'(structure containing header and matrix body) and pack it to structure 'toolboxstruc_arr':

toolboxstruc_arr(1) = tbpsg_matrix_pack('matrix_1', H1, header_1, c1, p1);

%Create the PSG matrix 'matrix_2'(structure containing header and matrix body) and pack it to structure 'toolboxstruc_arr':

toolboxstruc_arr(2) = tbpsg_matrix_pack('matrix_2', H2, header_2, c2, []);

%Create the PSG point 'point_1'(structure containing header and matrix body) and pack it to structure 'toolboxstruc_arr':

toolboxstruc_arr(3) = tbpsg_point_pack('point_1', a, []);

%Calculate avg_max_dev function at point 'point_1':

val1 = tbpsg_function_value('avg_max_dev(matrix_1,matrix_2)','point_1',toolboxstruc_arr);

%Display function value:

disp(sprintf('tbpsg_function_value = %g', val1));

%=======================================================================

%Creation of User Subroutine for calculating function value

%User subroutine is similar to the 'functionvalue'

%Create problem statement:

problem_statement = sprintf('%s\n',...

'calculate',...

'Point: point_1',...

'  avg_max_dev(matrix_1,matrix_2)',...

' ');

%Create Subroutine:

tbpsg_create_user_subroutine(problem_statement,toolboxstruc_arr,'.\','calculate_avg_max_dev');

%Uncomment section to call the user subroutine 'calculate_avg_max_dev':

%{

%Calculation of function with User Subroutine 'calculate_avg_max_dev':

[solution_str,outargstruc_arr] = calculate_avg_max_dev(H1,header_1,c1,p1,H2,header_2,c2,a,point_1_vars);

%Extract function value from the solution report:

val = tbpsg_function_data(solution_str, outargstruc_arr);

%}

 

Program output:

 

tbpsg_function_value = 4.56

 

This function can't be evaluated with PSG Subroutine 'functionvalue' because input matrices include different variables.