www.gusucode.com > graphics 案例源码程序 matlab代码 > graphics/PlotVerticalErrorBarsOfEqualLengthExample.m

    %% Plot Vertical Error Bars of Equal Length
% Create vectors |x| and |y|. Plot |y| versus |x|. At each data point,
% display vertical error bars that are equal in length.

x = 1:10:100;
y = [20 30 45 40 60 65 80 75 95 90];
err = 8*ones(size(y));
errorbar(x,y,err)