Generating a Legend for Colormap

34 次查看（过去 30 天）
Camille Woicekowski
评论： Camille Woicekowski 2020-7-24
I have several lines plotted on one graph that are color-coded by a colormap. I want to add a legend (not colorbar) that idenitifies each of the lines by their color. The colormap is working and the legend is generated, by the markers in the legend are all black. Here is what I have
cm = jet(size(x_mtx))
for i=1:size(x_mtx)
p3=plot(x_mtx(i,:), 'Color',cm(i,:));
hold on;
leg_label(i,:) = sprintf('%1.2e',rmse_mtx(i,1));
end
leg=legend(leg_label);
How can I color the legend with the color corresponding to the line plotted?

请先登录，再回答此问题。

回答（1 个）

KSSV
KSSV 2020-7-24
  1 个评论
Camille Woicekowski
Camille Woicekowski 2020-7-24
This seems to work, but it'd get tedious typing in the values for each legend handle when I have 15+. Can I use this method, but set the legend labels in the for loop? The info for the labels saved in a 22x1 matrix (rmse_mtx). I tried
clear p
for i=1:size(x_mtx)
p3=plot(x_mtx(i,:),'Color',cm(i,:));hold on
p(i)=p3(1);
legend(p,{sprintf('%1.2e', rmse_mtx(i,:))});
%label(kk,:) = sprintf('%1.2e',rmse_mtx(kk,1));
end
but this only gives me the first label.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Legend 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by