StupidSort.m

clc;
close all;

timer0=(now-datenum(1970,1,1))*86400;

rng('shuffle');

%% Data generation

lower = -10000;
upper =  10000;
dataSize = 100000;

x = 1:dataSize;

data=zeros(1,dataSize);
for i=1:dataSize
    data(i)=lower+((upper-lower)*rand());
        if mod(i,10000)==0
        fprintf('Generating random numbers\n');
        end
end

fprintf('\nData set generated!\n\n');

dataUnsorted = data;
timer1=(now-datenum(1970,1,1))*86400;
timer2=(now-datenum(1970,1,1))*86400;
%% Sorting
for i=1:1:dataSize
    if mod(i,round(dataSize/20))==0
        fprintf('Sorting... Elapsed time: %.3f\n',(now-datenum(1970,1,1))*86400-timer1);
        timer1=(now-datenum(1970,1,1))*86400;
    end
    max=data(i);
    j=i;
    for j = i:dataSize
        if (data(j)>max)
            max=data(j);
            index=j;
        end
    end
    tmp=data(i);
    data(index)=tmp;
    data(i)=max;
end
%%
figure;

    subplot(2,1,1);
    bar(x,dataUnsorted,'r');
    xlim([1 dataSize]);
    ylim([lower upper]);
    title('Unsorted values');
    grid on;

    subplot(2,1,2);
    bar(x,data,'g');
    xlim([1 dataSize]);
    ylim([lower upper]);
    title('Sorted values');
    grid on;

%%
fprintf('\nSorting complete!\n');
fprintf('Total sorting time: %.4f\n',(now-datenum(1970,1,1))*86400-timer2);
fprintf('Total run time    : %.4f\n',(now-datenum(1970,1,1))*86400-timer0);