MATLAB: How to change the curves to same colour when using hold on

colorfor looplegend

Dear all, I am using a for-loop and hold on to plot a graph. As usual, Matlab automatically change the colour of legends but I want to keep all the legends in the same colour. Could you please help Thanks

Best Answer

Specify the colours in each plot call:

figure(1)
plot(x(1,:), y(1,:), '-k')
hold on
for k1 = 2:N
    plot(x(k1,:), y(k1,:), '-k')
end
hold off

Related Solutions

MATLAB: Changing the legend color

Try something like this:

y = linspace(0,50,50);                          % Create Data

v = 1:14;                                       % Number Of Curves
x = sin(v(:)*y*2*pi) + 2*v(:);                  % Create Data
cm = colormap(jet(numel(v)));                   % Define Color Map
figure
hold on
for k = 1:numel(v)
    plot(x(k,:), y, 'Color',cm(k,:))            % Plot Each Vector According To The Colours In ‘cm’
end
hold off

The colours will not repeat unless you want them to do so. You can use any colormap you want, or you can create your own.

MATLAB: How to hold legend

Look at this Example

t=0:0.1:10;
y1=sin(t);
y2=cos(t);
% ------Plot the first data----------
plot(t,y1);
h=legend('word1')
%-------Plot the second data---------
hold on
plot(t,y2);
str=get(h,'string')% get the previous legend
new_leg='word2'  % your new legend
h=legend([str new_leg])  % concatenate the new and the previous legend

Best Answer

Related Solutions

MATLAB: Changing the legend color

MATLAB: How to hold legend

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