The ability to specify that the "errorbar" function should display the error bars inside the patches is not available in MATLAB.
There are two workarounds for this limitation, usage of which depends on the release of MATLAB that you are using.
For R2019a or earlier releases:
Find the center of each bar and pass this data into "errorbar" with the respective error values.
% Example data model_series = [10 40 50 60; 20 50 60 70; 30 60 80 90]; model_error = [1 4 8 6; 2 5 9 12; 3 6 10 13]; b = bar(model_series, 'grouped');
hold on % Find the number of groups and the number of bars in each group [ngroups, nbars] = size(model_series);
% Calculate the width for each bar group groupwidth = min(0.8, nbars/(nbars + 1.5));
% Set the position of each error bar in the centre of the main bar % Based on barweb.m by Bolu Ajiboye from MATLAB File Exchange for i = 1:nbars % Calculate center of each bar x = (1:ngroups) - groupwidth/2 + (2i-1) * groupwidth / (2nbars); errorbar(x, model_series(:,i), model_error(:,i), 'k', 'linestyle', 'none'); end hold off
For R2019b or later releases:
Retrieve the x coordinate of each bar using the "XEndPoints" property and pass this data into "errorbar". To view the release-specific documentation on bar properties, execute the following command in the MATLAB R2019b command window:
>> web(fullfile(docroot, 'matlab/ref/matlab.graphics.chart.primitive.bar-properties.html'))
% Example data model_series = [10 40 50 60; 20 50 60 70; 30 60 80 90]; model_error = [1 4 8 6; 2 5 9 12; 3 6 10 13]; b = bar(model_series, 'grouped');
hold on % Calculate the number of groups and number of bars in each group [ngroups,nbars] = size(model_series);
% Get the x coordinate of the bars x = nan(nbars, ngroups); for i = 1:nbars x(i,:) = b(i).XEndPoints; end
% Plot the errorbars errorbar(x',model_series,model_error,'k','linestyle','none'); hold off
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