Plot a figure with 2 x-axis and a single y-axis.

Question

Sharath Yerneni 2020-7-14

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https://ww2.mathworks.cn/matlabcentral/answers/564593-plot-a-figure-with-2-x-axis-and-a-single-y-axis

评论： Sharath Yerneni 2020-7-15

I am trying to plot a figure on matlab with 2 x-axis. The y-axis is y=x^2.

First x-axis is x and 2nd x-axis is 1/x as shown in figure.

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Answer 1

Abhishek Gangwar 2020-7-15

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https://ww2.mathworks.cn/matlabcentral/answers/564593-plot-a-figure-with-2-x-axis-and-a-single-y-axis#answer_465926

在 MATLAB Online 中打开

clc;
clear;
close all;
x1 = 1:40;
y1 = x1.^2;
line(x1,y1,'Color','r')
ax1 = gca; % current axes
ax1.XColor = 'r';
ax1.YColor = 'r';
ax1_pos = ax1.Position; % position of first axes
ax2 = axes('Position',ax1_pos,...
    'XAxisLocation','top',...
    'YAxisLocation','right', ...
    'Color','none');
x2 = 1./x1;
y2 = x2.^2;
line(x2,y2,'Parent',ax2,'Color','k');

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Sharath Yerneni 2020-7-15

Hi abhishek,

Thank your for your response. But that still doesn't answer my question. I just need 1 single plot with just 1 y-axis. Maybe my previous figure is unclear. Please look into the below figure. As far as I know, there is no possible way of doing this on matlab. I went through other questions but those couldn't answert this as well.

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