如何从一个向量中获得不在另一个向量中的元素 [英] How to get the elements from one vector that aren't in another vector

问题描述

我知道这很简单，但是很难为此找到合适的功能.我有一个向量a = [1 2 3 4]和另一个向量b = [1 2 6 8].我想返回a中所有不在b中的元素.在这种情况下，它将为[3 4].你如何做到的?

I know this is simple but am having a hard time finding the right function for this. I have a vector a = [1 2 3 4] and another vector b = [1 2 6 8]. I want to return all of the elements in a that aren't in b. In this case, it would be [3 4]. How do you do this?

推荐答案

您尝试使用

did you try with setdiff?

c = setdiff(a,b)

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