How to write a short syntax for the legend?

The legend in the plot shows seven lines is according to the length of EC in the program. I want to write one syntax for the legend in terms of the index i instead of seven, so that it repeats for the values of EC and gives me the same figure

clc
clear all
%------------------------------Program-------------------------------------
EC = [0.0052 0.0078 0.0104 0.013 0.0156 0.0182 0.0208];
Reff = 7;%if we write Ref=4:1:20 then all the effective radii from 1 to 20 will be executed at once and will gives 20 figures, otherwise writing only one will execute only one
h=2115:9:2394;

for j = 1:length(Reff)
  hold on  
    for i = 1:length(EC)
        filename1 = [num2str(EC(i)),'\',num2str(Reff(j)),'um\out_resultsG_I0.dat'];
        I1 = getsignal(filename1);
        I1(isnan(I1))=0;
        I0_1 = sum(I1,2);
        filename1 = [num2str(EC(i)),'\',num2str(Reff(j)),'um\out_resultsG_Q0.dat'];
        Q1 = getsignal(filename1);
        Q1(isnan(Q1))=0;
        Q0_1 = sum(Q1,2);
        dep(:,j)=(I0_1-Q0_1)./(I0_1+Q0_1);
        plot(dep,h,'LineWidth',2);
        
    end
   
end
%--------------------------------------------------------------------------
hold off
%-----------------------------Title----------------------------------------
title(['Effective radius=',num2str(Reff(j)),'\mum',', FOV=2mrad'],'FontSize',12,'FontWeight','normal');
xlabel('Depolarisation ratio \delta_{out}','FontSize',12,'FontWeight','normal');
ylabel('Cloud depth (m)','FontSize',12,'FontWeight','normal');
        
%------------------------------Legend--------------------------------------
legend(['EC=',num2str(EC(1)),'/m'],['EC=',num2str(EC(2)),'/m'],['EC=',num2str(EC(3)),'/m'],...
['EC=',num2str(EC(4)),'/m'],['EC=',num2str(EC(5)),'/m'],['EC=',num2str(EC(6)),'/m'],...
['EC=',num2str(EC(7)),'/m'],'location','Southeast')

.

Answer 1

[Steven Lord]

Set the DisplayName property of each line just like you set the LineWidth. Then legend show will make the legend appear and use the DisplayName property values.

x = 0:360;
axis([0 360 -1 1])
hold on

plot(x, sind(x), 'ro-', 'MarkerIndices', 1:60:numel(x), 'DisplayName', 'sine')
plot(x, cosd(x), 'k^:', 'MarkerIndices', 30:60:numel(x), 'DisplayName', 'cosine')
legend show

I used MarkerIndices too because I didn't want the plots to be covered with their markers.

[Wiqas Ahmad]

I think this is not my question. Because if I want to plot seven lines, so I have to write seven syntaxes which I have already done it in the legend. My question is that If you see the syntax ['EC=',num2str(EC(1))in the legend which I have repeated for each line display in the legend. what I want is to write one syntax only with introducing index i so that it repeates seven times according to length of EC and give me the same plot.