How can I change the x-axis to log scale using boxplot?

Question

Therese 2013-5-9

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I have plotted my data using boxplot, but now I would like to change the x-axis to log scale.

I have used this command: set(gca,'XScale','log') However, the size of the boxes become unequal (some of them are wider than the others...)

I would also like to change the scale (xlim) to go from 1000 to 0, but when I try this error message shows up:

>> xlim([1000 0]) Error using set Bad property value found. Object Name : axes Property Name : 'XLim' Values must be increasing and non-NaN.

Is it possible to do this in any other way?

Thanks! /Therese

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Answer 1

Grzegorz Knor 2013-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/75145-how-can-i-change-the-x-axis-to-log-scale-using-boxplot#answer_84861

在 MATLAB Online 中打开

First question:

Can you write small example? Because I don't understand fully your problem.

Second question:

Instead of:

xlim([1000 0])

use:

xlim([0 1000])

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Grzegorz Knor 2013-5-10

在 MATLAB Online 中打开

Is this the solution to your problem:

X = 3+abs(200*randn(100,25));
boxplot(X)
set(gca,'yscale','log','ydir','reverse')
ylim([1 1000])

?

Therese 2013-5-10

No... unfortunately, it doesn't work. I can reverse the x-axis, but the boxes still change in width, and the distance between the lowest light intensity and the second lowest light intensity is larger (3.4 - 6 lux), than the distance between 190 - 600 lux, for example. Do you have any other idea?

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