Merge two plots with the same y axis

Question

Adi Purwandana 2024-5-20

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链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2120506-merge-two-plots-with-the-same-y-axis

编辑： Adi Purwandana 2024-5-20

采纳的回答： Piyush Kumar

data_x2.mat

在 MATLAB Online 中打开

Hello there,

I have two sets of parameter, x1 and x2 and they both vary with depth. Since the scale span of x1 is different to that of x2, what I want to do is to put the axis of x2 above, as the secondary plot (see fig below). Anyone can help me to fix this?

x1 = 0:0.1:5;
y1 = 0:1:50;
y2 = 0:1:90;
x2 = y2.^0.9;
figure;
subplot(1,2,1)
plot(x1,y1);
ylabel('Depth (m)');
xlabel('Length');
subplot(1,2,2);
plot(x2,y2,'r');
ylabel('Depth (m)');
xlabel('Power');

Please find attached the data, or please access the code above to generate the data.

Thanks

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Adi Purwandana 2024-5-20

Have you tried it? It's for yy axis not the x axis. I read already that link before and I can't manage it. Let me know if you try and have the solution.

Rik 2024-5-20

A recent question also asked about two x axes in one plot. Where did you search?

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Answer 1

Piyush Kumar 2024-5-20

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链接

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https://ww2.mathworks.cn/matlabcentral/answers/2120506-merge-two-plots-with-the-same-y-axis#answer_1460221

在 MATLAB Online 中打开

Hi Adi,

It seems like you want x2 to be plotted against y2 but have its x-axis aligned at the top nd y-axis synchronized with the y1.

x1 = 0:0.1:5;

y1 = 0:1:50;

y2 = 0:1:90;

x2 = y2.^0.9;

t = tiledlayout(1,1);

% Create the first axes

ax1 = axes(t);

plot(ax1, x1, y1, '-r');

ax1.XColor = 'r';

ax1.YColor = 'r';

% Create the second axes

ax2 = axes(t);

plot(ax2, x2, y2, '-k', 'Parent', ax2);

ax2.XAxisLocation = 'top';

ax2.YAxisLocation = 'right';

ax2.Color = 'none';

% Link the y-axes of ax1 and ax2

linkaxes([ax1, ax2], 'y');

ax2.YTick = [];

% ax2.YColor = 'none';

ax1.Box = 'off';

ax2.Box = 'off';

I have tried it almost the same way as it is mentioned in the "Display Data with Multiple x-Axes and y-Axes" section of the link. Also, I have used linkaxes function to synchronize the two y-axis.

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Adi Purwandana 2024-5-20

编辑：Adi Purwandana 2024-5-20

Super! Thank you Piyush, I really appreciate your help.

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Merge two plots with the same y axis

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Merge two plots with the same y axis

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