清空筛选条件
清空筛选条件

I want to divide each row of a matrix with corresponding element in another matrix .Please help.

75 次查看（过去 30 天）
SUNANNA S S
SUNANNA S S 2017-4-17
编辑： First Last 2018-3-28
For eg: I have a matrix
A=[9 6 3;
4 2 8;
1 0 0;]
divide A by B=[3 2 1] to get the result
C=[3 2 1;
2 1 4;
1 0 0;]

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2017-4-18
编辑：Stephen23 2017-4-18
Use bsxfun:
>> A = [9,6,3;4,2,8;1,0,0];
>> B = [3,2,1];
>> bsxfun(@rdivide,A,B(:))
ans =
3 2 1
2 1 4
1 0 0

更多回答（2 个）

Matt J
Matt J 2017-4-17
编辑：Matt J 2017-4-17
Assuming you have R2016b or higher,
C=A./B;
and if you do not,
C=bsxfun(@rdivide,A,B);
  1 个评论
SUNANNA S S
SUNANNA S S 2017-4-18
Sir, This gives the answer
C =
3.0000 3.0000 3.0000
1.3333 1.0000 8.0000
0.3333 0 0
I want to divide each row in A by the corresponding value in B that is, rownumber=element in B, if we take first row of A I want to divide it by first element in B and so on.

请先登录，再进行评论。

First Last
First Last 2018-3-28
编辑：First Last 2018-3-28
Make sure B is transposed to a column vector, i.e.,
C=A./B';

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by