Graph only plotting 1 point

Hi all, i am unable to plot my graph using my code, for some reason whenever i plot it, MATLAB would simply show me a blank graph, which i woould assume that the graph only plotted 1 point. However, i do not understand why it would only point a single point.

This is my code, where T is my data set of 261345 X 1

figure(3)

hold on

for q=0:0.1:max(n)

Num=sum(T>q)

datasize=261345 % have to change manually

P=Num/datasize

semilogy(q,P)

hold on

end

Answer 1

[Cris LaPierre]

The default syntax does not include a marker style. If your plot is only a single point, then you cannot see the line. Just include a markerstyle.

for q=0:0.1:max(n)
    Num=sum(T>q)
    datasize=261345  % have to change manually
    P=Num/datasize
    semilogy(q,P,'o')
    hold on
end
hold off

[See Kai Xiang]

thank you so much!