How to shade several areas in a plot?
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Malahat Mehraban
el 13 de Dic. de 2021
Comentada: Malahat Mehraban
el 13 de Dic. de 2021
Hello everyone,
I want to shade some points in a figure. These points are for example 35 in a plot with the length of 600 point. How can I plot these shades in a for loop?
I actually expect to get somthing like the picture that I have attached. I have a figure with three subplots and I want to shade 35 points of these plots.
Thank you in advance for your helps.
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Respuesta aceptada
Star Strider
el 13 de Dic. de 2021
Try this —
x = 210:0.5:227;
y = randn(size(x));
bands = [214 216; 221 223]; % X-Coordinates Of Band Limits: [x(1,1) x(1,2); x(2,1) x(2,2)]
figure
plot(x, y)
hold on
xp = [bands fliplr(bands)]; % X-Coordinate Band Definitions
yp = ([[1;1]*min(ylim); [1;1]*max(ylim)]*ones(1,size(bands,1))).'; % Y-Coordinate Band Definitions
for k = 1:size(bands,1) % Plot Bands
patch(xp(k,:), yp(k,:), [1 1 1]*0.25, 'FaceAlpha',0.5, 'EdgeColor',[1 1 1]*0.25)
end
hold off
This is fully adaptive to the size of the plot limits, requiring only that the ‘bands’ matrix be defined.
I doubt if there is a way to do this without the loop.
.
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Más respuestas (2)
Chunru
el 13 de Dic. de 2021
x = 210:.5:218;
y =randn(size(x));
plot(x, y); hold on
yl = ylim;
% Use the patch for the box
patch([212 213 213 212], [yl(1) yl(1) yl(2) yl(2)], [0.3 0.3 0.3], 'FaceAlpha', 0.3 )
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