shading in a graph
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Hello I want to produce a graph like this with vertical shades (grey) like that. PLEASE how do I shade the data points? I already have the dates for shating, prodblem is how?
回答（1 个）
Sulaymon Eshkabilov
2021-9-4
I don't think there is any plot tool that creates such graph with only data input. However, you can create this by plotting the data using plot() command and add shades (vertical lines) where recessions occured using just stem(), or line(), or plot() again. Here is one simple example:
t = -5:.1:13;
T = sin(t);
plot(t,T, 'm-', 'linewidth', 2), grid on; hold on
warndlg( 'Select 3 Peaks or Downs or Any', 'Selection');
pause(5)
[x, y]=ginput(3);
stem(x(1), y(1), 'r-', 'linewidth', 5)
stem(x(2), y(2), 'g-', 'linewidth', 5)
stem(x(3), y(3), 'b-', 'linewidth', 5)
plot(x(1)*ones(1,10), 'r-', 'linewidth', 5)
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2021-9-4
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