anum = data;
A_max=max(max(anum));
A_min=min(min(anum));
这段程序具体是什么意思呢

 Accepted Answer

就是求anum的最值呗. max、min按列求出每列的最值,然后再次max、min就求出每列最值的最值,得到所有数的最值了,实际上相当于
anum = data(:);
A_max=max(anum);
A_min=min(anum);
这样更容易理解

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