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

    %% Control Error Bar Cap Size
% Control the size of the caps at the end of each error bar by setting the
% |CapSize| property to a positive value in points.

x = linspace(0,2,15);
y = exp(x);
err = 0.3*ones(size(y));
errorbar(x,y,err,'CapSize',18)