Creating plot over the Box plot

Asked by Minha Ferouz on 19 Jun 2018

Latest activity Edited by Minha Ferouz on 20 Jun 2018

Accepted Answer by Jeffrey Eymer

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Hi Friends,

A = 4; B = 6; C = 8; D = 9;

values = [A;B;C;D]

Y = [500];

labels = {'a','b','c','d','e'}

figure

hold on

boxplot(values,Y);

plot(Y,values,'r*')

I'm trying to use hold on to view plot (*) on the boxplot. But, it doesn't work well and I only see box plot not the plot over it.

Thanks

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Answer by Jeffrey Eymer on 19 Jun 2018

Accepted Answer

You are misunderstanding how the arguments to boxplot are used. boxplot(values, [500]) does not actually move the box plot to the x-value of 500, rather it just labels the box plot with an x-value of 500. The box plot itself still resides at x=1.

To accomplish what you are trying to do, replace the line with

boxplot(values, Y, 'positions', Y);

The 'positions' argument designates where the box plot will actually be placed on the graph.

2 Comments

Minha Ferouz on 20 Jun 2018

Thanks Jeffrey. It worked. I also find another way to set x-axis using

 hAx = gca;
 xtk=hAx.XTick;
 hold on
 hl = plot(xtk,A,'r*')

Could you also tell me how I can set 'labels' against each data point on boxplot?

Minha Ferouz on 20 Jun 2018

for t = 1:5

text(Y,A(t),labels(t))

end

Used this and it seems to be working fine. The only problem I have now is that the labels are not readable and appear over the data points.

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