How could I use Legend function in a for loop with an array?

Hi! everyone I am trying to insert a Legend in a plot with different names but in a sequence. The problem basically is when I plot Legend, it only show me the first or the last filename I require. So I hope you can help me because I tried with different methodologies and it doesn't work. My code is the next:

          for k=1:numfiles
                figure(2)                                           
                legend(filename(k));

                plot3(f{1,k}'/1000,((k*10^2)*10^6)+Ejey{1,k},2*q_magC{1,k},(colour(k)))

                title('TRANSFORMADA DE FOURIER')
                xlabel('  Frecuencia (kHz)   ')
                zlabel('  Magnitud   ')
                view(40,35)
                grid on
                hold all
           end

Thanks in advance!

[Geoff Hayes]

Jose - if I do something similar and create the legend outside of the loop (or even as you have shown above within at each iteration of the loop), then all of the filenames appear as expected as legend entries. Can you show us what the filename variable is initialized to? How many curves are being drawn on your figure?

[Jose Peñaloza]

Thank you! finally I did it, the code that let me:

for k=1:numfiles
                figure(2)
                leyenda=filename(1:k)
                legend(leyenda)
                plot3(f{1,k}'/1000,((k*10^2)*10^6)+Ejey{1,k},2*q_mag{1,k},(colour(k)))
                xlim ([0 25])
                title('TRANSFORMADA DE FOURIER')
                xlabel('  Frecuencia (kHz)   ')
                zlabel('  Magnitud   ')
                view(40,35)
                grid on
                hold on
           end

Answer 1

[Stalin Samuel]

%try like this
s = {'L1','L2','L3'};
for i = 1:length(s)
    plot(rand(10,1),'color',rand(1,3));
    hold on
end
legend(s)

[Jose Peñaloza]

Thank you for your help! Finally I did it with that code

for k=1:numfiles
                figure(2)
                leyenda=filename(1:k)
                legend(leyenda)
                plot3(f{1,k}'/1000,((k*10^2)*10^6)+Ejey{1,k},2*q_mag{1,k},(colour(k)))
                xlim ([0 25])
                title('TRANSFORMADA DE FOURIER')
                xlabel('  Frecuencia (kHz)   ')
                zlabel('  Magnitud   ')
                view(40,35)
                grid on
                hold on
           end