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Highlight speicific hour of x-axis on matlab graph

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Falak Naz
Falak Naz 2020-5-5
编辑： Mehmed Saad 2020-5-5
I basically want to highlight the area from location 10 to 13 on x-axis, right now its highling the whole area
clear all;
close all;
clc
x = [0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24];
y = [0 184.24 184.24 184.24 180.54 180.54 12.77 12.77 12.77 5.40 5.40 5.40 5.40 5.40 5.40 5.40 5.40 5.40 5.40 3.00 3.00 3.00 3.00 3.00 3.00 ];
y1 = [0 136.24 136.24 136.24 133.54 9.77 9.77 9.77 9.77 3.40 3.40 3.40 3.40 3.40 3.40 3.40 3.40 3.40 3.40 3.00 3.00 3.00 3.00 3.00 3.00 ];
subplot(1,2,1);
plot(x,y,x,y1,'LineWidth',1.75)
title('Total Electric Load');
xlabel('Time in hour'); ylabel('Electic Load (KWH)');
legend('A','B');
ax = gca;
c = ax.Color;
ax.Color = 'blue'
alpha(0.8);
grid;
xlim([0.5 24])
ylim([0 220])
hold off;

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回答（1 个）

Mehmed Saad
Mehmed Saad 2020-5-5
编辑：Mehmed Saad 2020-5-5
You are changing the color of axis and not highlighting a specific portion of plot. For that purpose you can use fill or patch.
for example i want to create a rectangle fill bw x = [1 2] and y = [4 5]
figure,
fill([1 2 2 1],[4 4 5 5],'b','EdgeColor','none','FaceAlpha',0.5)
xlim([0 3]),ylim([3 6])
By playing with fill you can acheive graph below
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