How can one show variable values in legend of a plot?
299 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
For title, I see that
plot((1:10).^2)
f = 70;
c = (f-32)/1.8;
title(['Temperature is ',num2str(c),' C'])
But I do not know how to make this work in case of legend with more than two labels. Please advise.
2 commentaires
dpb
le 29 Mai 2020
fmts = {'Only Solar Generation[Integrated = %0.2f KW]';
'Whatever...%f';
'Whatever...%.1f'};
nums=[a b c].';
legends=compose(fmts,nums);
hLg=legend(legends);
saves generating and having to use sequentially-named variables and the need to edit all of them in case something changes. This way all the edits are in one place and the number, order, etc., etc., etc., ... are all independent of the code--and vice versa.
Réponse acceptée
dpb
le 29 Mai 2020
Modifié(e) : dpb
le 30 Mai 2020
Just build the desired string array -- num2str works nicely here alto you have to ensure the values are in a column vector to avoid them being all strung out in one long string instead of as an array...
labels=num2str([1:5].','Weather Station %d');
plot(randn(5))
legend(labels,'location','best')
results in
Or, you can use the 'DisplayName' property of each line when you plot and legends will show automagically.
Plus de réponses (1)
Ameer Hamza
le 29 Mai 2020
Run this example
T = 1:3;
Legends = compose('Temp is %d', T);
hold on;
plot(rand(1,10));
plot(rand(1,10));
plot(rand(1,10));
legend(Legends)
Voir également
Catégories
En savoir plus sur Legend dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!