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

    %% Vary Circle Size
% Create a scatter plot using circles with different sizes. Specify the
% size in points squared

x = linspace(0,3*pi,200);
y = cos(x) + rand(1,200);
sz = linspace(1,100,200);
scatter(x,y,sz)
%% 
% Corresponding elements in |x|, |y|, and |sz| determine the location and
% size  of each circle. To plot all circles with the equal area, specify
% |sz| as a numeric  scalar.