How to find the elements of a matrix > 0 in Matlab?

Question

我很好奇-是否有单个Matlab命令返回Matrix中大于0的元素？

Answer 1

The following code returns all positive elements of matrix A :

A(find(A > 0))

or in short form as proposed by Gunther Struyf:

A(A > 0)

Answer 2

The find function will return the indices of elements that are not zero.

ind = find(A > 0);

is what you're looking for...

Answer 3

或为此目的专门设计的命令：“ nonzeros”

nz_A = nonzeros(A);