Legend in for loop of unknown number

Hi,

I have a problem.

I want to plot a figure in for-loop of unknown number of values.

*********************************

%%%%plot

    cc=hsv(nk12*nk21);

   jj=1;

   for kp=1:nk21

   for jp=1:nk12

   loglog(p,intensity1(:,jp,kp),p,intensity2(:,jp,kp),'color',cc(jj,:))

   ylabel('f^es');

   xlabel('t');

    title('Graph of intensity for  modes 1 and 2')

    set(gca, 'XScale', 'log', 'YScale', 'log')

    jj=jj+1;

    hold all

    [~,~,~,names] = legend;

    legend([names {sprintf('%s%g','k12,k21=',jp,',',kp)}]);

end

end

*******************************************

How can I arrange this so it plots a legend for each dataset?

Answer 1

[Roger Wohlwend]

First: your code is unreadable if you do not format it as code!

Second: As some variables are missing I cannot run the code, so I cannot guarantee that my answer really works. Try the following:

h = NaN(nk21*nk12,1);
hold on;
for kp=1:nk21
   for jp=1:nk12
      h(jj) = loglog(p,intensity1(:,jp,kp),p,intensity2(:,jp,kp),'color',cc(jj,:)) ;
      jj=jj+1; 
   end 
end

legend(h, s,u,'Location','southeast')

[bahar]

i changed my program. could you please take a lool at it...

Answer 2

[bahar]

this is my plot... i have two curves with two color, red and blue but in legend just show red one.