Why isn't there any simple command to create a grouped boxplot in MATLAB yet?

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Sharah
Sharah 2016-10-9
编辑： Massimo Zanetti 2016-10-9
I am trying to plot a grouped boxplot on MATLAB but surprisingly Excel can do better!Can anyone suggest the best way to create a grouped boxplot as easy as making one for barchart?

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Massimo Zanetti
Massimo Zanetti 2016-10-9
编辑：Walter Roberson 2016-10-9
Sure, there is matlab function specific for this: http://www.mathworks.com/help/stats/boxplot.html
load carsmall
boxplot(MPG,Origin)
title('Miles per Gallon by Vehicle Origin')
xlabel('Country of Origin')
ylabel('Miles per Gallon (MPG)')
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Massimo Zanetti
Massimo Zanetti 2016-10-9
编辑：Massimo Zanetti 2016-10-9
According to what I know, yes they must have the same size. The reason is that, the boxplot helps visualizing different feature distributions of the same dataset of samples. Assume you have 100 observed animals, and for any of them you observe height, weigth. Then your data will be 100x2 matrix.
However, if you really need to explain different sized data, here is how to do it: https://it.mathworks.com/matlabcentral/answers/60818-boxplot-with-vectors-of-different-lengths

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