How to add serialized legends to a chart in MATLAB

I have a database with n wind speeds, then I classify those speeds in a variable called Nclassesdevento (in the example it was classified in 10 classes).
I am making a graph of the nclasses and I need the caption for those classes. Includes the Legend function in the for loop because I expected the legend to return for each class after each interaction but it didn't work.
In other words, it is necessary to include the legend for each respective class

Can someone help me?



figure(3) 
subplot(2,1,1);
hold on
xaxa=0;
for kkkk=1:Nclassesdevento
    plot(ventoclass(kkkk,1:nptv(kkkk)))
        xaxa=xaxa+1
        legenda(xaxa)=legend(['Classe ', num2str(kkkk)]) 
end
hold off
xlabel('Ocorrência dos ventos');
ylabel('Velocidade do Vento média (m/s)');
title(['Velocidade média do Vento SCADA categorizada em ', num2str(Nclassesdevento()),' classes'])

subplot(2,1,2); 
histfit(ventoutil,50,'wbl')
xlabel('Velocidade media do vento (m/s)');
ylabel('numero de Ocorrência'); 
title('Histograma da velocidade media do vento e curva de Weibull');
legend({'Vento','Weibull'});

Answer 1

[Star Strider]

See if the Line Properties name-value pair DisplayName will do what you want. Specifically see: Specify Legend Labels During Plotting Commands for an illustration.

[Star Strider]

My pleasure.

I cannot run your code without the appropriate data.

Try this:

plot (ventoclass (kkkk, 1: nptv (kkkk)), 'DisplayName',sprintf('Classe %2d',kkkk))

That worked when I tried it with this test code:

figure
hold on
for kkkk = 1:3;
    plot(rand(1,2), rand (1,2), 'DisplayName',sprintf('Classe %2d',kkkk))
end
hold off
legend

.

Answer 2

[Vinicius Teixeira]

First of all I would like to thank you for the answer. I consulted DisplayName and managed to display the caption, but I still have a problem because I could include a text before the class number, because the class is being displayed by

plot (ventoclass (kkkk, 1: nptv (kkkk)), 'DisplayName', num2str ( kkkk))

1

....

10

which can be seen in the figure below. I would like to see:

Class 1

......

Class 10

I tried this command but it didn't work

plot (ventoclass (kkkk, 1: nptv (kkkk)), 'DisplayName','Classe ', num2str ( kkkk))

Can anybody help me?

see the complete code

figure(3)%Plota os ventos classificados 
subplot1=subplot(2,1,1);
hold on
for kkkk=1:Nclassesdevento
    plot(ventoclass(kkkk,1:nptv(kkkk)),'DisplayName',num2str(kkkk))   
end
hold off
xlabel('Ocorrência dos ventos');
ylabel('Velocidade do Vento média (m/s)');
title(['Velocidade média do Vento SCADA categorizada em ', num2str(Nclassesdevento()),' classes'])
legend1 = legend(subplot1,'show');
set(legend1,'Location','best');
subplot(2,1,2); 
........