function y = parameter( u )
%PARAMETER Summary of this function goes here
%   Detailed explanation goes here
tSim=u;


filename_1='LOG_unitdebug.xls';
t=xlsread(filename_1);



% string0_current=t(:, 4);
% string1_current=t(:, 5);
% string2_current=t(:, 6);
% string0_voltage=t(:, 7);
% string1_voltage=t(:, 8);
% string2_voltage=t(:, 9);
% panel0_current=t(:, 10);
% panel2_current=t(:, 11);
% panel1_current=t(:, 12);

dimension=size(t);
dimension=dimension(1,1);

Stringtype='S0';

switch Stringtype
    
    case 'S0'
        string_voltage=t(tSim+1,4);
        string_current=t(tSim+1,7);
        panel_current=t(tSim+1,10);
    case 'S1'
        string_voltage=t(tSim+1,5);
        string_current=t(tSim+1,8);
        panel_current=t(tSim+1,11);
    case 'S2'
        string_voltage=t(tSim+1,6);
        string_current=t(tSim+1,9);
        panel_current=t(tSim+1,12);
     otherwise
        disp('Unknown battery');
end

if tSim>dimension
        string_voltage=0;
        string_current=0;
        panel_current=0;
end

y(1)=string_voltage;
y(2)=string_current;
y(3)=panel_current;
end