Asked by Tom Cook
on 21 Apr 2019

I kind of have the same problem, which was asked here:

I want to have some parts of labels for boxplot italic but it just writes "\it" out. Somehow I cannot change the Interpreter to 'text'.

Also why is there no proper handle for the boxplot function like for any other plot?

This solution does not work! (MATLAB R2017a) The labels are still NOT italic and \it is still written there.

dados = rand(100,2);

boxplot(dados,'labels',{'\bf\it{IDEB}_2_0_0_7','\bf Efficiencies'})

h = findobj(gca, 'type', 'text');

set(h, 'Interpreter', 'tex');

Answer by Star Strider
on 21 Apr 2019

Accepted Answer

dados = rand(100,2);

boxplot(dados,'labels',{'\bf\it{IDEB}__{2007}','\bf Efficiencies'});

set(gca, 'TickLabelInterpreter', 'tex');

That worked when I tested it.

Tom Cook
on 23 Apr 2019 at 6:55

Thanks, it worked.

Still, don't understand why boxplot has no proper figure handle. Annoying.

Star Strider
on 23 Apr 2019 at 11:14

As always, my pleasure.

A handle to boxplot just returns the data it plots, and nothing about the statistics or anything else that it calculates. The labels are simply axis tick labels.

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Answer by Tom Cook
on 23 Apr 2019 at 13:39

Edited by Tom Cook
on 23 Apr 2019 at 13:40

Not even that.^^

If I run the code down here.

data_1 = rand(20,);

h_plot = plot(data_1);

h_boxplot = boxplot(data_1);

I get for h_plot a nice handle(may be it's the wrong word?) which I can modify like:

h_boxplot.LineWidth = 2.5

For h_boxplot I get a useless double with numbers counting up...that's it. I don't see the point why the function boxplot doen't behave like any other plotting function.

Star Strider
on 23 Apr 2019 at 14:43

The information on the boxplot is actually availble. It’s not obvious, and I had to dig for it.

Example —

dados = rand(100,2);

hb = boxplot(dados,'labels',{'\bf\it{IDEB}_{2007}','\bf Efficiencies'});

set(gca, 'TickLabelInterpreter', 'tex');

hbp = get(gca);

BoxPlotInfo = hbp.Children.Children

producing (in this instance):

BoxPlotInfo =

14×1 Line array:

Line (Outliers)

Line (Outliers)

Line (Median)

Line (Median)

Line (Box)

Line (Box)

Line (Lower Adjacent Value)

Line (Lower Adjacent Value)

Line (Upper Adjacent Value)

Line (Upper Adjacent Value)

Line (Lower Whisker)

Line (Lower Whisker)

Line (Upper Whisker)

Line (Upper Whisker)

Then to get the first box information:

FirstBox = BoxPlotInfo(5)

I didn’t dig deeper than that.

I invite you to explore those properties at your leisure.

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