MATLAB: Boxplot at uneven spacing

boxplotplot

Just consider the following example, which I have taken from here.

rng('default')  % For reproducibility
x1 = rand(5,1);
x2 = rand(10,1);
x3 = rand(15,1);
x = [x1; x2; x3];
g1 = repmat({'First'},5,1);
g2 = repmat({'Second'},10,1);
g3 = repmat({'Third'},15,1);
g = [g1; g2; g3];
% Create the box plots.
boxplot(x,g)

The above will boxplot at equal intervals, for which I can chang the xticks. What I want is to boxplot at uneven abscissa values, lets say at abscissa = [1.1, 2.5, 4.6]

Thanks

Best Answer

Hi Pankaj,

Refer to Plot Appearance section in the Box Plot documentation link below:

https://www.mathworks.com/help/stats/boxplot.html#d117e147744

'Positions' Name-Value Pair can be used to specify the abscissa vector.

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MATLAB: How to compute multiple boxplots with vectors of different length using the Statistics Toolbox 4.0 (R13)

The BOXPLOT function allows a grouping argument that allows you plot multiple boxplot on the same figure window. Here is the code to do this:

x = rand(5,1);
y = rand(10,1);
z = rand(15,1);
group = [repmat({'First'}, 5, 1); repmat({'Second'}, 10, 1); repmat({'Third'}, 15, 1)];
boxplot([x;y;z], group)

MATLAB: Change color of a box in BOXPLOT

Refer to the following example for changing the box color

% Create the boxplot

x1 = normrnd(5,1,100,1);

x2 = normrnd(6,1,100,1);

figure;

boxplot([x1,x2]);

% Change the boxplot color from blue to green

a = get(get(gca,'children'),'children'); % Get the handles of all the objects

t = get(a,'tag'); % List the names of all the objects

box1 = a(7); % The 7th object is the first box

set(box1, 'Color', 'g'); % Set the color of the first box to green

Best Answer

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MATLAB: How to compute multiple boxplots with vectors of different length using the Statistics Toolbox 4.0 (R13)

MATLAB: Change color of a box in BOXPLOT

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