MATLAB:[Y，I] = max(AS，[]，2);是什么? [英] MATLAB: What's [Y,I]=max(AS,[],2);?

问题描述

我刚开始使用matlab，需要非常快地完成此程序，所以我没有时间阅读所有教程.

I just started matlab and need to finish this program really fast, so I don't have time to go through all the tutorials.

熟悉它的人可以解释下面的语句在做什么吗.

can someone familiar with it please explain what the following statement is doing.

[Y,I]=max(AS,[],2);

AS和2之间的[]最让我感到困惑.最大值是否同时分配给Y和I?

The [] between AS and 2 is what's mostly confusing me. And is the max value getting assigned to both Y and I ?

推荐答案

C = max(A,[],dim)返回标量dim指定的沿A维度的最大元素.例如，max(A,[],1)沿A的第一个维度(行)产生最大值.

C = max(A,[],dim) returns the largest elements along the dimension of A specified by scalar dim. For example, max(A,[],1) produces the maximum values along the first dimension (the rows) of A.

此外，[C, I] = max(...)表单还为您提供了C中的最大值，并在I中提供了它们的 indices (即位置).

Also, the [C, I] = max(...) form gives you the maximum values in C, and their indices (i.e. locations) in I.

您为什么不尝试这样的示例?将其输入到MATLAB中，然后看看会得到什么.它应该使事情更容易看到.

Why don't you try an example, like this? Type it into MATLAB and see what you get. It should make things much easier to see.

m = [[1;6;2] [5;8;0] [9;3;5]]
max(m,[],2)

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