how to plot curve using data from for loop

i need help with plotting this equation using for loop. I found solution already posted here, but i wasnt able to implement it on my problem. (Currently this will plot only one dot (i assume thats the last value from for loop)

for K = [1 2 3 4 5]

    Q=0.49;

    Rac=0.0015;

    m=K;

    freq=(K*9000);

    Cr=1/(2*pi*Q*freq*Rac);

    Lr=1/(((2*pi*freq)^2)*Cr);

    Lp=m*Lr;

    w=2*pi*freq;

    w0=1/(sqrt(Lr*Cr));

    wp=1/(sqrt(Lp*Cr));

    Race=14685.973;

    Qe=(sqrt(Lr/Cr))*(1/Race);

    %///////////////////////////////////////

    citatel=((w^2)/(w0^2).*(sqrt(m.*(m-1))));

    menovatel=(((w^2)/((wp^2))-1)+1i.*(w/w0).*(((w^2)/(w0^2))-1).*(m-1).*Qe);

    gain=(citatel/menovatel);

    plot(freq,gain);

end

Answer 1

[Jan]

Either insert hold('on') bevor the loop, such that the plot() command does not delete formerly existing points. Or collect the data at first and draw them after the loop as a line:

freqV = zeros(1, 5);
gainV = zeros(1, 5);
for K = 1:5
  ...  % No changes here

    % Instead of:
    % plot(freq,gain);
    freqV(K) = freq;
    gainV(K) = gain;
  end
  plot(freqV, gainV);

Answer 2

[Tobias]

Change your freq and gain variables, so they're both a function of k. All values will be stored that way and your plot should work. The syntax is:

freq(K) = (K*9000);
gain(K) = (citatel/menovatel);