How to return value of column not the index using find function?

9 次查看（过去 30 天）

Ahmed Hamed 2016-4-30

评论： Ahmed Hamed 2016-4-30

I have a simple matrix

I'd like to search for all values in the first column whose second column is 3

When i use

find(A(:,2)==3)

I returns the index not the value of the first column?

Is there any matlab function that can do this?

That in advance

Azzi Abdelmalek 2016-4-30

编辑：Azzi Abdelmalek 2016-4-30

out= A(A(:,2)==3,1)

Also, with your code you found the indices

idx=find(A(:,2)==3)

The the result is

R=A(idx,1)

Ahmed Hamed 2016-4-30

Thanks a lot

MATLAB Language Fundamentals Matrices and Arrays Matrix Indexing

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

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

Translated by