How do I plot data points with x-axis tick labels that are strings?
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MAHMOUD ALZIOUD
il 18 Set 2017
Commentato: Walter Roberson
il 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 Commenti
Walter Roberson
il 15 Gen 2022
Modificato: Walter Roberson
il 24 Gen 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, '.')
Risposta accettata
Walter Roberson
il 29 Ago 2023
Modificato: MathWorks Support Team
il 29 Ago 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 Commenti
AD
il 8 Mag 2023
What if we have large number of data points..say 70?
How can I then obtain a plot in matlab?
Walter Roberson
il 8 Mag 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.
Più risposte (1)
ejjada
il 16 Mar 2024
plz anyone answer me
how to read my hole x axis data as x1,x2,x3,x4,...
1 Commento
Walter Roberson
il 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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