For 2 curves, how to have xticks on both the above and below of x-axis?

Question

Xiaohan Du 2018-5-14

0
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https://ww2.mathworks.cn/matlabcentral/answers/400750-for-2-curves-how-to-have-xticks-on-both-the-above-and-below-of-x-axis

评论： Xiaohan Du 2018-5-15

Hi all, I plot the attached figure using this code

clear; clc;
x1 = [1 3 5 7];
x2 = [1 2 4 7];
data1 = [1 2 3 4];
data2 = [4 3 2 1];
hAx1 = semilogy(x1, data1, 'b-^');
hold on
hAx2 = semilogy(x2, data2, 'k-v');

I'd like to have x1 on top and x2 on below of the x-axis using xticks, so the figure would show (1 3 5 7) on the below of x-axis with blue numbers and show (1 2 4 7) on the top of the x-axis with black numbers. Such that the 2 curves are differentiated.

Many thanks!

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Answer 1

Akira Agata 2018-5-15

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/400750-for-2-curves-how-to-have-xticks-on-both-the-above-and-below-of-x-axis#answer_320213

在 MATLAB Online 中打开

The following is one way to do that. Please see the following link for more details.

Create Chart with Multiple x-Axes and y-Axes

hAx1 = semilogy(x1, data1, 'b-^');
hold on
hAx2 = semilogy(x2, data2, 'k-v');
ax1 = gca;
ax1.XColor = 'b';
ax1.XTick = [1 3 5 7];
ax2 = axes(...
'Position',       ax1.Position,...
'XAxisLocation',  'top',...
'Color',          'none',...
'YTick',          [],...
'XLim',           [1 7],...
'XTick',          [1 2 4 7]);