如何在Matlab中将向量添加到矩阵中? [英] how can I add a vector to a matrix in matlab?

问题描述

如何通过将向量的i索引添加到i行中的所有成员的方式，如何将向量添加到Matlab中的矩阵?

How can I add a vector to a matrix in Matlab, in a manner that the i's index of the vector would be added to all the members in the i's row?

例如:

A = [1 2 3;
     4 5 6;
     6 7 8]
v = [1;
     2;
     3]

所需的结果是:

[2 3 4;
 6 7 8;
 9 10 11]

非常感谢.

推荐答案

bsxfun的替代方法是使用

An alternative to bsxfun is to use repmat and repeat the column vector v as many times as A has columns:

A = [1 2 3; 4 5 6; 6 7 8];
v = [1; 2; 3]

A = A + repmat(v,1,3);

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