my code won't run or publish

m = 2;
n = 1;
hold on
for i = 1:100000
    q = 3*rand(1);
    if q < 1
    m = m/2;
    n = n/2; 
    elseif q < 2
        m = m/2;
        n = (300+n)/2;
    else
        m = (300+m)/2;
        n = (300+n)/2;
    end
   plot(m,n,'b')
end
hold off

Answer 1

[David Hill]

m = 2;
n = 1;
for i = 1:100000
    q = 3*rand(1);
    if q < 1
    m = m/2;
    n = n/2; 
    elseif q < 2
        m = m/2;
        n = (300+n)/2;
    else
        m = (300+m)/2;
        n = (300+n)/2;
    end
   mm(i)=m;
   nn(i)=n;
end
scatter(mm,nn,'filled','MarkerFaceColor','b','SizeData',1);

[Raul Flores]

thank you!