matlab not plotting in for loop, plz help.

for le = les:100:len 
t=max(tf,tw);
if t <=16
  f = 0.9*fy;
elseif 16 < t <= 35
  f = 0.85*fy;
elseif 35 < t <= 50
  f = 0.80*fy;
elseif 50 < t <= 100
  f = 0.75*fy;
end
N1 = f*Ag;
wx = le/rx;
wy = le/ry;
w = max(wx,wy);
%fprintf('w = %5.6f\n',w);
Qxy = sqrt((fy/235));
%fprintf('Qxy = %5.6f\n',Qxy);
Wxy = round(w*Qxy);
%fprintf('Wxy = %5.6f\n',Wxy);
Py = mod(Wxy,10);
%fprintf('Py = %5.6f\n',Py);
Px = Wxy - Py;
%fprintf('Px = %3.0f\n',Px);
xx = Px/10+1;
%fprintf('xx = %3.0f\n',xx);
P = scn(xx,Py+2);
%fprintf('P = %5.3f\n',P);
N2 = N1*P*10^-3;
plot(le,N2);
end

I need to plot N2 vs le graph, im not getting any error code but the graph is just blank. not even a point.

Answer 1

[Stalin Samuel]

use the line specifications and marker size to identify the plotted points

plot(le,N2,'*k','Markersize',12)

• If above command not solve your problem post the entire code/ missing values in the code already posted .So that somebody can trace the bug easily

[Tianju Huang]

Thank you so much, now all the dots are shown on the screen xD. Is there any way that i can join the dots together to form some sort of trend lines?

[Stalin Samuel]

plot(le,N2,'*-k','Markersize',12)