plot in different ranges for x

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Muhammad Usman 2014-11-25

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https://ww2.mathworks.cn/matlabcentral/answers/164257-plot-in-different-ranges-for-x

回答： solov andrei 2015-5-15

i want to plot a function say sin(x) for the interval 0:30 and then i want to continue this plot for some other function say ax+b (a,b are constants) for the interval 30:40,how can a manage this plot and also x-axis. Thanks

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Answer 1

Image Analyst 2014-11-25

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在 MATLAB Online 中打开

Here's one way. Just make up each and stitch together:

x1 = linspace(0, 30, 100);
y1 = sin(x1);
x2 = linspace(30, 40, 30);
a = .15;
b = -5;
y2 = a*x2 + b;
x = [x1, x2];
y = [y1, y2];
plot(x, y, 'bo-');
grid on;
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);

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Image Analyst 2014-11-25

编辑：Image Analyst 2014-11-25

You're welcome. Thanks for accepting. If the ranges of the two y's are very much different , then you can also use plotyy() which will give each curve it's own independent Y axis (one on each side of the graph).

Muhammad Usman 2014-11-26