提取除向量的每个第n个元素之外的每个元素 [英] Extract every element except every n-th element of vector

问题描述

给定一个向量

A = [1,2,3,...,100]

我想提取除第n个以外的所有元素。所以，对于n = 5，我的输出应该是

I want to extract all elements, except every n-th. So, for n=5, my output should be

B = [1,2,3,4,6,7,8,9,11,...]

我知道你可以访问每个第n个元素by

I know that you can access every n-th element by

A(5:5:end)

但我需要像逆命令这样的东西。
如果这不存在，我会迭代元素并跳过每个第n个条目，但这将是肮脏的方式。

but I need something like the inverse command. If this doesn't exist I would iterate over the elements and skip every n-th entry, but that would be the dirty way.

推荐答案

你可以删除这样的元素：

You can eliminate elements like this:

A = 1:100;
removalList = 1:5:100;
A(removalList) = [];

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