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

    %% Display Markers at Maximum and Minimum Data Points
% Create a vector of random data and find the index of the minimum and
% maximum values. Then, create a line plot of the data. Display red
% markers at the minumum and maximum data values by setting the
% |MarkerIndices| property to a vector of the index values.

x = 1:100;
y = rand(100,1);
idxmin = find(y == max(y));
idxmax = find(y == min(y));
plot(x,y,'-p','MarkerIndices',[idxmin idxmax],...
    'MarkerFaceColor','red',...
    'MarkerSize',15)