This is what I get using the current code but I need to centre my individual errorbars.
Help with Errorbars on Bar Graph
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Jordyn Shaw
el 22 de Feb. de 2021
Comentada: Star Strider
el 23 de Feb. de 2021
I created a bar graph using the following:
AngleFlex90 = [95 99; 93.33 80; 95.67 99.33]; AngleError = [8.9 6.6; 7.6 5; 4 1.2]; bar(AngleFlex90, 'grouped') set(gca, 'XTicklabel',{'Subject 1' 'Subject 2' 'Subject 3'})
hold on title('Elbow Flexion Angle for 3 Subjects with a Goal of 90 Degrees','FontSize',14, "FontWeight","bold") xlabel('Subject','FontSize',12, "FontWeight","bold") ylabel('Elbow Angle (deg)','FontSize',12, "FontWeight","bold") legend('Baseline','Experimental',"Location","northeast") ylim([0 130]) yline (90)
errorbar(AngleFlex90,AngleError,'k', "LineStyle",'none', "LineWidth",1);
The figure that came up had errorbars between each set of bars rather than in the centre of them. How do I code to have the errorbars in the centre of each bar?
I tried using ngroups and nbars codes that I found on the internet but non of them made sense to me because I’ve never coded until recently.
Thanks for any help you can give.
Respuesta aceptada
Star Strider
el 22 de Feb. de 2021
Try this:
AngleFlex90 = [95 99; 93.33 80; 95.67 99.33];
AngleError = [8.9 6.6; 7.6 5; 4 1.2].';
figure
hBar = bar(AngleFlex90, 'grouped');
set(gca, 'XTicklabel',{'Subject 1' 'Subject 2' 'Subject 3'})
hold on
for k1 = 1:size(AngleFlex90,2)
ctr(k1,:) = bsxfun(@plus, 1:numel(hBar(k1).XData), hBar(k1).XOffset'); % Note: ‘XOffset’ Is An Undocumented Feature, This Selects The ‘bar’ Centres
ydt(k1,:) = hBar(k1).YData; % Individual Bar Heights
end
errorbar(ctr, ydt, AngleError,'.');
title('Elbow Flexion Angle for 3 Subjects with a Goal of 90 Degrees','FontSize',14, "FontWeight","bold")
xlabel('Subject','FontSize',12, "FontWeight","bold")
ylabel('Elbow Angle (deg)','FontSize',12, "FontWeight","bold")
yln = yline (90);
legend(hBar,'Baseline','Experimental', "Location","northeast")
ylim([0 130])
producing:
.
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