How to have more than one box plot in one plot?

Hey all,

I'm unable to plot more than one box plot in one figure. My data sets are seven n x 1 double (every double array of this seven and I have 7 of them which I want to have boxplots for every 7 data set in one figure, something like this:

Sample data are provided, I have 7 file like this

Thank you all.

Answer 1

[Ameer Hamza]

Please refer to my answer here: https://www.mathworks.com/matlabcentral/answers/392679-how-to-fill-boxes-in-boxplot-with-different-colors

[BN]

Thank you. I saw this code from you and it's amazing. In the example in the link you used

data = rand(100, 4);

I have different sizes of arrays like this: 27360 x 1 and 28520 x 1 and 29542 x 1; (All have one column and different row numbers). Do you know how I can do in that case? I think I should do this without for loop though I haven't idea how to do this.

Thanks

[Ameer Hamza]

This show you an example of how you can do it using cell array

data = {y1,y2,y3,y4,y5,y7,y6}; % y1, y2, y3, ..., y7 are the variables, they can be of unequal length
x = 1:numel(data);
colors = rand(numel(data), 3);
figure();
ax = axes();
hold(ax);
for i=1:numel(data)
    boxchart(x(i)*ones(size(data{i})), data{i}, ...
        'BoxFaceColor', colors(i,:), ...
        'LineWidth', 0.5, ...
        'WhiskerLineStyle', '--')
end

[BN]

Thank you it's awesome.

[Ameer Hamza]

Glad to be of help.

Answer 2

[Florian Floh]

Concatenating your data into one matrix should do the trick.

Let's say you load two arrays:

load('y.mat');
load('x.mat');

% Concatenate them to a matrix named z
z = [x,y];

% Create a boxplot
boxplot(z);

[BN]

Thanks but I have different x and y row numbers