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Bar with errorbars

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Bar with errorbars

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13 Jul 2009 (Updated )

This code plots bars with errorbars, as simple as that.

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Description

As of now (2009-Jul-13), MATLAB doesn't have a built-in function to plot bars with with error bars on top of them. This function solves that problem.

To a beginning user, this provides a very simple way of plotting bar with errorbars with a simple command:
errorbarbar(y,e); % where y is the height of the bars and e is the limit to plot as error bars (of length 2*e, about y).

For an intermediate user, this function provides the handles to the BAR and ERRORBAR lines for further modification.
[b,e] = errorbarbar(y,e); % or ...
[b,e] = errorbarbar(x,y,e); % where x is center location of the group of bars

For an advanced user, this function also provides ways to modify any and all of the bar and line series properties while plotting it in the first place.

Example:
barSettings = {'facealpha',0.5,'edgecolor',[0.5 0.5 0.5]};
lineSettings = {'linestyle','--','linewidth',2};
[b,e] = errorbarbar(x,y,e,barSettings,lineSettings);
set(b,'facecolor',[0 0.5 0]); % set all bars to color green

Hint: You can use the lineSettings variable to use distinct upper and lower limits.

What it DOESN'T do:
1. Plot horizontal bar graphs
2. Work with bar(y,e,barSettings,lineSettings). Instead, use:
      bar(x,y,e,barSettings,lineSettings).

MATLAB release MATLAB 7.5 (R2007b)
Other requirements Because of the way this function is written, it should be backwards/upwards compatible, as long as BAR and ERRORBAR functions are consistent with R2007b.
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Comments and Ratings (10)
04 Apr 2013 a  
19 Jan 2013 Right Grievous

Really good piece of code. However, is it possible to colour one of the bars differently to the others (i.e as you would do using (set(h(1),'FaceColor','r') on a normal Matlab bar plot?

I have tried but it just colours them all the same...

03 Jul 2012 Min Liu

Excellent tool. Thx!

16 Dec 2011 Xiaohui Liu

Other error bars I find cannot deal with asymmetric error bounds. This one works like a charm.

19 Oct 2011 Shatrughan  
19 Oct 2011 Venn Ravichandran

x = 1:10; % x-axis
y = rand(10,2); % bar-heights
L = rand(10,2)*0.01; % Lower limit
U = rand(10,2)*0.03; % Upper limit
barSettings = {};
lineSettings = {U, 'linestyle', 'none'};
errorbarbar(x, y, L, barSettings, lineSettings);

19 Oct 2011 sinoTrinity Liu

"Hint: You can use the lineSettings variable to use distinct upper and lower limits."
Can you give me an example? I need to draw asymmetric error bounds. Thanks.

07 Jun 2011 Shatrughan

Thanks a lot !!

03 Jun 2011 Venn Ravichandran

@Shatrughan: errorbarbar(1:5, rand(5,2)*10, rand(5,2),{'stacked'});

02 Jun 2011 Shatrughan

It is not as simple as you said. Would you mind putting up an illustrative example (especially for stacked bar plot). I would really appreciated it.

Thanks,
Shatrughan

Updates
14 Jul 2009

Changed a bug which caused the program to give an error if either the barSettings or lineSettings was empty.

15 Jul 2009

Now works with stacked bars as well.

22 Jun 2011

Error bars no longer have legends of their own. If you want them back on, then comment out line 63 :)

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