Side-by-side boxplots can be created by manipulating the positions of the boxplots manually or by using the grouping variable functionality provided by the boxplot function.
% Sample data
data1 = randn(100, 1); % Data for the first boxplot
data2 = randn(100, 1); % Data for the second boxplot
% Grouping variable
group = [ones(size(data1)); 2 * ones(size(data2))];
% Combine the data into one vector
combinedData = [data1; data2];
% Create the boxplot
boxplot(combinedData, group, 'Labels', {'First', 'Second'});
% Adjust the positions to make them side by side
ax = gca;
lines = ax.Children.Children; % Get the line objects
boxes = lines(arrayfun(@(l) strcmp(l.Type, 'line') && strcmp(l.Tag, 'Box'), lines)); % Find box lines
% Adjust the x-data of the boxes
for i = 1:numel(boxes)
boxes(i).XData = boxes(i).XData + (-1)^(i-1) * 0.15;
end
This code will produce a figure where the two boxplots are displayed side-by-side. Adjusting the XData of the boxes shifts them left and right, respectively, allowing them to be displayed like a grouped bar graph.
The Labels property is used to provide labels for the different groups of boxplots. The adjustment of 0.15 is arbitrary and can be changed depending on how close or far apart you want the boxplots to be.
Please note that this is a simplified example, and in practice, you may need to adjust the positions of other elements (such as whiskers, outliers, and medians) in a similar manner to keep the visual integrity of the boxplot.
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