I want to add some information in the top x axis

Question

Odd-Simon Simonsen 2023-3-16

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1930115-i-want-to-add-some-information-in-the-top-x-axis

回答： Sanjana 2023-3-30

I have a code that plots the temperature from 4 different sensors, and the x axis shows the logging number, the y axis shows the temperature.

This is my code:

plot(dat00001m.Var3,'DisplayName','dat00001m.Var3');
hold on;
plot(dat00001m.Var4,'DisplayName','dat00001m.Var4');
plot(dat00001m.Var5,'DisplayName','dat00001m.Var5');
plot(dat00001m.Var6,'DisplayName','dat00001m.Var6');
ylabel('Temperatur  [℃]');
xlabel('Log#'); 
legend({'chan101', 'chan102', 'chan103', 'chan104'}, 'Location', 'northeast');
hold off;

output:

But, I want to add another x label on top of the plot that shows the real dime the sensor logged the information. This is saved in my table as 'dat0001m.Var2'.

I want this to log on the same pharameters that are set for the log, so value 0, 500, 1000, 1500, 2000, 2500.

How can i do this? Thank you!

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Answer 1

Sanjana 2023-3-30

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Hi,

I understand that you are looking for ways to label the x-axis using the data in "dat0001m.Var2".

To accomplish this, you can utilize the "xticklabels" function. This function allows you to pass a string array containing the data from "dat0001m.Var2" file as labels for the x-axis.

Please refer to the below link for further help,

https://www.mathworks.com/help/matlab/ref/xticklabels.html#bvaefoe-2

Hope this helps!