How do I plot data points with x-axis tick labels that are strings?
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MAHMOUD ALZIOUD
le 18 Sep 2017
Commenté : Walter Roberson
le 16 Mar 2024
hello there, i have 15 (x) points named x1 to x15; and corresponding to this i have 15 (y) points named from y1 to y15. how can i plot them ?
4 commentaires
Walter Roberson
le 15 Jan 2022
Modifié(e) : Walter Roberson
le 24 Jan 2022
I have the suspicion that you might be attempting to plot variables in a table() object. No currently released version of MATLAB supports that directly; you would need to instead
plot(data.signalTime, data.signalNoise, '.')
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Walter Roberson
le 29 Août 2023
Modifié(e) : MathWorks Support Team
le 29 Août 2023
The easiest way to specify the tick labels as strings is to use the xticklabels function. For example, plot five points. Change the ticks to only five values by calling the xticks function. Then change the x-axis tick labels to “x1”, “x2”, “x3”, “x4”, and “x5”.
plot(1:5)
xticks(1:5)
xticklabels(["x1", "x2", "x3", "x4", "x5"])
Another way to combine a character with a sequence of numbers is to use the xtickformat function.
plot(1:5)
xticks(1:5)
xtickformat("x %g ")
Alternatively, you can plot categorical values. Specify the second argument when you call the “categorical” function to ensure that the data is in the expected order.
x = categorical(["Red", "Yellow", "Blue"],["Red", "Yellow", "Blue"]);
plot(x,1:3)
11 commentaires
AD
le 8 Mai 2023
What if we have large number of data points..say 70?
How can I then obtain a plot in matlab?
Walter Roberson
le 8 Mai 2023
Please read http://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval for information about why we strongly recommend against creating variable names dynamically.
Plus de réponses (1)
ejjada
le 16 Mar 2024
plz anyone answer me
how to read my hole x axis data as x1,x2,x3,x4,...
1 commentaire
Walter Roberson
le 16 Mar 2024
Please read http://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval for information about why we strongly recommend against creating variable names dynamically.
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