histogram with two sets of data

Question

Alexandre Williot 2015-5-6

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https://ww2.mathworks.cn/matlabcentral/answers/215429-histogram-with-two-sets-of-data

评论： Nicholas 2017-2-28

采纳的回答： Star Strider

Hello, I want to make an histogram exactly like the image here. Have you an idea ?

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Answer 1

Star Strider 2015-5-6

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Use the bar function with the 'grouped' option. The error bars and the comparison lines between the plotted bars are a bit more difficult, and the code the plot them depends on whether you are using R2014a or earlier, or R2014b or later.

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Star Strider 2015-5-6

在 MATLAB Online 中打开

I apologise for the delay. I had to launch R2014a to be sure the code works. You will probably need to experiment with it to get the exact result you want.

This code:

data = randi([870 1020], 4, 2);             % Create Data
errs = randi([12 15], 4, 2 );               % Create Errors
cmap = gray(4);
xval = 1:4;
figure(1)
hBar = bar(xval,data);                     % Plot Data, Get Handle
set(hBar(1), 'FaceColor', cmap(2,:))       % Colour First Bar Set
set(hBar(2), 'FaceColor', cmap(3,:))       % Colour First Bar Set
set(gca, 'YLim', [870 1080])               % Set Y-Axis Limits
hold on
for k1 = 1:length(hBar)                    % Loop: Plots Error Bars
    hb = get(get(hBar(k1),'Children'), 'XData');
    midbar = mean(hb);
    errorbar(midbar, data(:,k1), errs(:,k1), '.') % plotting errors
    sigbarx(k1,:) = midbar;                % Use To Plot Significance Bars
end
plot(sigbarx(:,1), [1 1]*1065, '-k', 'LineWidth', 2)
plot(sigbarx(1,1:2), [1 1]*1075, '-k', 'LineWidth', 2)
ylabel('temps de reaction (ms)')
legend('valide','non valide', 'Location', 'NE')
xtklbl = {'indice enotionnel', 'indice neutre', 'indice enotionnel', 'indice neutre'};
set(gca, 'XTickLabel',xtklbl)
text(1.5, 855, 'question enotionnelle', 'HorizontalAlignment','center')
text(3.5, 855, 'question semantique', 'HorizontalAlignment','center')
hold off

produces this plot (that is as close as I can get to the plot you posted):

Alexandre Williot 2015-5-7

Yes! It's perfect! Thank you very much.

Star Strider 2015-5-7

My pleasure!

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Answer 2

Elvira Ruiz 2016-10-23

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https://ww2.mathworks.cn/matlabcentral/answers/215429-histogram-with-two-sets-of-data#answer_240270

I do not have enough words to express my gratitude. THANK YOU!

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Star Strider 2016-10-25

在 MATLAB Online 中打开

My pleasure.

That code was written for R2014a. HG2 graphics were introduced in R2014b.

Example code for R2014b (and later versions) for bar chart error bars is:

y = [212206000000 229040000000 39312320000; 119783500000 169247500000 128418300000 ; 211838000000 706581300000 85349300000];
hBar = bar(y);
set(gca,'XTickLabel', {'300 ','350 ','400 '})
legend('C','S','T', 'Location','N')
grid on
ylabel('N/m^{2}')
xlabel ('\mum')
colormap summer
for k1 = 1:size(hBar,2)
    ctr(k1,:) = bsxfun(@plus, hBar(k1).XData, [hBar(k1).XOffset]');             % Centres Of Bar Groups
    ydt(k1,:) = hBar(k1).YData;                                                 % Y-Data Of Bar Groups
end
hold on
for k1 = 1:size(hBar,2)
    errorbar(ctr(k1,:), ydt(k1,:), ones(size(ydt(k1,:)))*0.1.*ydt(k1,:), '.r')  % Plot 10% Error Bars
end
hold off