how to extend the plot with slope of last two points till the boundary. Boundaries can be dictated by peak of adjacent plots

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Meddi Tharun 2020-5-5

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https://ww2.mathworks.cn/matlabcentral/answers/523216-how-to-extend-the-plot-with-slope-of-last-two-points-till-the-boundary-boundaries-can-be-dictated-b

评论： Meddi Tharun 2020-5-6

In the attached figure, curve 1 has to extend till boundary. How can i do that?

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Meddi Tharun 2020-5-6

在 MATLAB Online 中打开

X1 = linspace(2,3,20);
Y1 = linspace(1/1000, 1,20);
X2 = linspace(14,15,30);
Y2 = linspace(1/10000, 1,30);
Using semilogy to plot data.

Meddi Tharun 2020-5-6

在 MATLAB Online 中打开

Sorry, for incomplete code to generate given plots.

X1 = linspace(2,3,20);
Y1 = linspace(1/1000, 1,20);
Y1Dash = flip(Y1);
X2 = linspace(14,15,30);
Y2 = linspace(1/10000, 1,30);
Y2Dash = flip(Y2);
figure;semilogy(X1, Y1Dash, "-r*");hold on;grid on;
semilogy(X2, Y2Dash, "-r*");hold off;
legend("curve1", "Curve2");

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回答（1 个）

KALYAN ACHARJYA 2020-5-6

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/523216-how-to-extend-the-plot-with-slope-of-last-two-points-till-the-boundary-boundaries-can-be-dictated-b#answer_430597

编辑：KALYAN ACHARJYA 2020-5-6

在 MATLAB Online 中打开

Multiple way: One option

X1 = linspace(2,3,20);
Y1 = linspace(1/1000, 1,20);
X2 = linspace(14,15,30);
Y2 = linspace(1/10000, 1,30);
loglog([X1(1),X1],[Y2(1),Y1]);
hold on;
loglog(X2,Y2);
grid on;