myfun.m

来自「画图:对数据采集卡采集的数据画图并分析。MATLAB编的一个实用小程序」· M 代码 · 共 20 行

function f=myfun()
A=-load('backup.txt') %load date
[n,m]=size(A);
[x,y]=meshgrid(0:(n-1),0:(m-1));
figure;
mesh(x,y,A');
B=diff(A);
[n,m]=size(B);
figure;
[x,y]=meshgrid(0:(n-1),0:(m-1));
plot(x,B(:,1)); %n=1
figure;
plot(x,B(:,2)); 
figure;
plot(x,B(:,3)); 
figure;
plot(x,B(:,4)); 
figure;
plot(x,B(:,5)); 
mesh(x,y,B')