摘要：
peaks peaks介绍peaks()函数本质上是一个二元高斯分布的PDF；从图像上看，它有3个极小点，3个极大点；z=peaks(50)mesh(z)应用举例代码%PeaksLabel.mZ=peaks(30);%Z:30*30doublematrix;%Lookforthehighestpoint;zmax=max(Z);Zmax=max(zmax);%Firstlyfindthemaximumof30
介绍
- peaks() 函数本质上是一个二元高斯分布的PDF；
- 从图像上看，它有3个极小点，3个极大点；
z=peaks(50)
mesh(z)
.jpg)
应用举例
代码
% PeaksLabel.m
Z=peaks(30);
% Z: 30*30 double matrix;
% Look for the highest point;
zmax=max(Z);
Zmax=max(zmax);
% Firstly find the maximum of 30 columns,return zmax~1x30
% Secondly find the maximum of zmax, return 1x1
[Ymax, Xmax]=find(Z==Zmax);
% Y is first parameter using find()
zmin=min(Z);
Zmin=min(zmin);
[Ymin,Xmin]=find(Z==Zmin);
% plot func Z;
mesh(Z);hold on;
% label maximum and minimum point
plot3(Xmax,Ymax,Zmax,'k.','markersize',20);hold on
plot3(Xmin,Ymin,Zmin,'k.','markersize',20);hold on
text(Xmax,Ymax,Zmax,['max_value=',num2str(Zmax)])
text(Xmin,Ymin,Zmin, ['min_value=',num2str(Zmin)])
最终的效果图：
