Return Indices for x Smallest/Largest Values in Array

6 次查看（过去 30 天）
Nicholas Sbalbi
Nicholas Sbalbi 2020-6-4
评论： David Hill 2020-6-4
Is there a clean and elegant way for extracting the indices of the x smallest or largest values in an array? For example say I have an array [1,6,4,9,0] and I want the indices of the 3 smallest values, [1,3,5]. The functions min/max only return the index for the single minimum/maximum.

请先登录，再回答此问题。

采纳的回答

Steven Lord
Steven Lord 2020-6-4
Use the second output of the mink or maxk functions.

更多回答（2 个）

David Hill
David Hill 2020-6-4
[~,idx]=sort(x);
minIdx=idx(1:3);%for minimum 3
maxIdx=idx(end:-1:end-2);%for maximum 3
Sulaymon Eshkabilov
编辑：Sulaymon Eshkabilov 2020-6-4
here is one of the possible ways:
A = [...; ...; ...];
[Row1,Col1]=find(max(A(:))==A) % Shows row# and col# of largest element
[Row2,Col2]=find(min(A(:))==A) % Shows row# and col# of smallest element

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 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