MATLAB:复制向量“n"次 [英] MATLAB: duplicating vector 'n' times

问题描述

我有一个向量，例如

vector = [1 2 3]

我想将它在自身内复制 n 次，即如果 n = 3，它最终会变成:

I would like to duplicate it within itself n times, i.e. if n = 3, it would end up as:

vector = [1 2 3 1 2 3 1 2 3]

对于任何 n 值，我怎样才能做到这一点?我知道我可以执行以下操作:

How can I achieve this for any value of n? I know I could do the following:

newvector = vector;
for i = 1 : n-1
    newvector = [newvector vector];
end

不过这看起来有点麻烦.有没有更有效的方法?

This seems a little cumbersome though. Any more efficient methods?

推荐答案

尝试

repmat([1 2 3],1,3)

我会让你检查 repmat 的文档.

I'll leave you to check the documentation for repmat.

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