在特定范围内矢量的MATLAB绘图 [英] MATLAB plot of a vector on a specific range

问题描述

我需要知道如何在特定间隔内绘制矢量? 我用它通过绘制具有不同颜色的矢量值来突出显示此间隔. 因此，最终，我将需要首先绘制矢量，例如使用蓝色绘制，然后再使用红色绘制该特定间隔. 谢谢你的时间， 问候

I need to know how can i plot a vector over a specific interval? I'm using that to highlight this interval, by plotting the vector values with a different color. So Eventually, i will need to plot the vector as it is first with blue color for example, and then plot that specific interval with red color. Thanks for your time, Regards

推荐答案

t = 0:0.01:8*pi;
y = sin(t);

如果要用红色绘制特定的t间隔，则:

If you want to plot a specific t interval in red then:

ind = t>2 & t<6;
plot(t,y);
hold on
plot(t(ind), y(ind), 'r')

如果要用红色绘制特定的y间隔，则:

If you want to plot a specific y interval in red then:

ind = y>0.5 & y<0.8;
plot(t,y);
hold on
plot(t(ind), y(ind), 'r')

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