www.gusucode.com > graphics 案例源码程序 matlab代码 > graphics/ChangeErrorBarMarkerAndColorExample.m
%% Change Error Bar Marker and Color % Load the |count| data set to get the three-column matrix |count| that % contains traffic volume for three street locations over the course of a % day. Compute the mean of |count| for each row. % Copyright 2015 The MathWorks, Inc. load count.dat; y = mean(count,2); %% % Compute the standard deviation of |count| for each row and normalize by % the number of elements in the sample by setting the second input argument to 1. e = std(count,1,2); %% % Plot the computed average traffic volume, |y|, and the computed standard % deviations, |e|, for the three street locations. Set the |LineSpec| to specify % a red color, cross markers, and no line. figure errorbar(y,e,'rx')