raacampbell/shadedE​rrorBar

Creates an attractive shaded error region rather than discrete bars.

shadedErrorBar

shadedErrorBar is a MATLAB function that creates a continuous shaded error region around a line rather than discrete bars. The error region can either be specified explicitly or calculated on the fly based on function handles. The appearance of the plot can be modified via input arguments and/or the handles of the returned plot objects. You will need OpenGL enabled for transparency to work.

Examples

Basic example with overlaid points

% Prepare data
y=randn(30,80)*5;
x=(1:size(y,2))-40;
yP = sin( linspace(-2*pi,2*pi,length(x)) )*20;
y = bsxfun(@plus,y,yP)+60;

% Make the plot
clf
shadedErrorBar(x,y,{@mean,@std}); 

% Overlay the raw data
hold on
plot(x,y,'.','color',[0.5,0.5,0.95])

grid on

Overlaying multiple lines

% Prepare data for first line
y=ones(30,1)*x; 
y=y+0.06*y.^2+randn(size(y))*10;

clf
shadedErrorBar(x,y,{@mean,@std},'lineprops','-b','patchSaturation',0.33)

% Overlay second line
hold on
shadedErrorBar(x,2*y+20,{@mean,@std},'lineprops',{'-go','MarkerFaceColor','g'});

%Overlay third line
y=randn(30,80)*5; 
x=(1:size(y,2))-40;
yP = sin( linspace(-2*pi,2*pi,length(x)) )*20;
y = bsxfun(@plus,y,yP)+60;

% Make this line non-transparent
shadedErrorBar(x, y, {@mean,@std}, 'lineprops', '-r','transparent',false,'patchSaturation',0.075)

grid on

Modifying plot properties post-hoc

% Prepare data
y=randn(30,80)*5; 
x=(1:size(y,2));
yP = sin( linspace(-2*pi,2*pi,length(x)) )*20;
y = bsxfun(@plus,y,yP);

% Plot
clf
s = shadedErrorBar(x, y, {@mean,@std}, 'lineprops', '-r');

% Set face and edge properties
set(s.edge,'LineWidth',2,'LineStyle',':')
s.mainLine.LineWidth = 5;
s.patch.FaceColor = [0.5,0.25,0.25];

% Overlay data points post-hoc
hold on
plot(s.mainLine.XData, s.mainLine.YData,'or','MarkerFaceColor','w')

grid on

set(gca,'XTickLabel',[],'YTickLabel',[])

Change Log

15tth November 2022

• Allow targing to a specific axis

8th Novemeber 2019

• Merge Octave support from JarlPed

24th November 2017

• Add patchSaturation as an optional argument.

6th August 2017

• Parameter/value pairs for input arguments greater than 3.
• Transparency on by default.
• No longer changes the renderer.

Contributing

If you wish to contribute please fork the repo, check out the dev branch and make your changes there, then file a pull request describing what you did.

Licensing

This code is licensed under the lesser GPL v3. See LICENSE file in the repository.