Continuous Error bars

Hi all, i want to plot the mean of a track with the standard deviation. I tried this, by using the function errorbar, This is acceptable, but I was looking for something different, such as a continuous band. Something like this one:

Thanks, M

Answer 1

[Tom Lane]

You may be able to modify this to suit your needs:

x = linspace(0,1,20)';
y = sin(x);
dy = .1*(1+rand(size(y))).*y;  % made-up error values
fill([x;flipud(x)],[y-dy;flipud(y+dy)],[.9 .9 .9],'linestyle','none');
line(x,y)

[Marcos Luis Fernadez]

It's really nice Tom!!! Thanks!! Then You can use: ...alpha(.5). From 0 to 1 modify the transparency!

[Mitchell Thayer]

Excellent solution; this is exactly what I was looking for today. Thanks, Tom!!

[Justin Lines]

This is awesome, such a big help

[Veena Chatti]

WOW. Thanks. No file downloads, no mess, no fuss, no fretting about learning another programming language or environment, or exporting a bunch of data elsewhere...Just five simple lines of code and the relief of saving a whole lot of tedium to make something seemingly simple work!

Answer 2

[Oleg Komarov]

You can choose one of the following in the FEX:

• http://www.mathworks.com/matlabcentral/fileexchange/27485
• http://www.mathworks.com/matlabcentral/fileexchange/26311-shadederrorbar
• http://www.mathworks.com/matlabcentral/fileexchange/2683-confplot
• http://www.mathworks.com/matlabcentral/fileexchange/10843-errorfill

User defined functions have to be placed into a folder and that folder should be added to the MATLAB path. See addpath(), savepath() or on the menu bar File > Set path