%% Control Error Bars Lengths in All Directions
% Display both vertical and horizontal error bars at each data point. Control the lower and upper lengths of the vertical error bars using the yneg and ypos input argument options, respectively. Control the left and right lengths of the horizontal error bars using the xneg and xpos input argument options, respectively.

x = 1:10:100;
y = [20 30 45 40 60 65 80 75 95 90];
yneg = [1 3 5 3 5 3 6 4 3 3];
ypos = [2 5 3 5 2 5 2 2 5 5];
xneg = [1 3 5 3 5 3 6 4 3 3];
xpos = [2 5 3 5 2 5 2 2 5 5];
errorbar(x,y,yneg,ypos,xneg,xpos,'o')

% Copyright 2012 The MathWorks, Inc.