MATLAB Answers

Create Error bar and title into the bar chart

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Megan
Megan on 19 Feb 2020
Commented: Adam Danz on 14 May 2020 at 17:26
Hi guys
I have a bar chart and I want to add a error bar. But I dont know how to do that.
I have added my data set and this is my bar chart:
figure();
scaleSelection = strcmp(scale,'like'); % use strcmp(), not "==".
barData = meanVariantsVelocity(scaleSelection);
bh = bar(barData);
bh.FaceColor = 'flat';
% Find which bars have velocity==50
velocitySelection = velocity == 50;
velocityBarIdx = ismember(find(scaleSelection), find(velocitySelection));
% Choose two colors
barColors = [0 0 1; 1 0 1];
% Color the vel=50 bars
cmap = barColors(velocityBarIdx+1,:);
bh.CData = cmap;
[vgroup, vg] = findgroups (clean_ds.variants);
title = ('like');
% % add x tick labels
ax = bh.Parent;
ax.XTick = 1:numel(barData);
ax.XTickLabel = vg;
ax.TickLabelInterpreter = 'none';
xtickangle(ax, 45) % or try 90 degrees
my title is also not working.
Do you guys can help me?

  2 Comments

Rena Berman
Rena Berman on 14 May 2020 at 17:03
(Answers Dev) Restored edit
Adam Danz
Adam Danz on 14 May 2020 at 17:26
Copy of question
Hi guys
I have a bar chart and I want to add a error bar. But I dont know how to do that.
I have added my data set and this is my bar chart:
figure();
scaleSelection = strcmp(scale,'like'); % use strcmp(), not "==".
barData = meanVariantsVelocity(scaleSelection);
bh = bar(barData);
bh.FaceColor = 'flat';
% Find which bars have velocity==50
velocitySelection = velocity == 50;
velocityBarIdx = ismember(find(scaleSelection), find(velocitySelection));
% Choose two colors
barColors = [0 0 1; 1 0 1];
% Color the vel=50 bars
cmap = barColors(velocityBarIdx+1,:);
bh.CData = cmap;
[vgroup, vg] = findgroups (clean_ds.variants);
title = ('like');
% % add x tick labels
ax = bh.Parent;
ax.XTick = 1:numel(barData);
ax.XTickLabel = vg;
ax.TickLabelInterpreter = 'none';
xtickangle(ax, 45) % or try 90 degrees
my title is also not working.
Do you guys can help me?

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Answers (1)

Adam Danz
Adam Danz on 19 Feb 2020
Edited: Adam Danz on 19 Feb 2020
Here's a simple demo you can follow to add errorbars to your bar plot.
If you get stuck applying that demo, share what you've got and I'd be happy to get you over the hump.
To fix the title problem
title('like'); % not title = ('like');

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