MATLAB: Creating a legend inside a loop, using sprintf

Question

I am trying to make a legend for a plot with 'beta' number of curves. Basically, beta would be beta = [1 : 5] if I decided to have five curves, but it can be any number. I want to make a legend for that number of curves, and specifically do this by using a for loop (I know there are other ways that don't need for loops but I want to use a for loop for this one specifically). The code that I have (below) just gives me a legend for one curve "beta=1beta=2beta=3beta=4beta=5". I would need a legend for five curves. Basically the first curve would be beta = 1, the second curve would be beta = 2, and so on. Can someone help me?

for beta_val = beta
    plot(time, y);
    hold on
    lgd = sprintf('beta = %0.0f', beta);
    legend(lgd);
    end

Answer 1

Try something like this:

time = linspace(0, 2*pi);                                           % Create Data


beta = 1:5;                                                         % Create Data
y = sin(time(:)*beta);                                              % Create Data
for beta_val = beta
    plot(time, y(:,beta_val));
    hold on
    lgd{beta_val} = sprintf('beta = %0.0f', beta(beta_val));
end
legend(lgd);