How to find the minimum difference between the 3 elements of a vector in app designer?

3 次查看（过去 30 天）

piston_pim_offset 2023-12-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2059169-how-to-find-the-minimum-difference-between-the-3-elements-of-a-vector-in-app-designer

评论： piston_pim_offset 2023-12-13

I need to group the elements of a matrix 3 by 3 with the minimum difference between them. I found something like that: min(min(abs(X(1)-X2))), but l have 3 values.

6 个评论
显示 4更早的评论隐藏 4更早的评论

Dyuman Joshi 2023-12-11

编辑：Dyuman Joshi 2023-12-11

I am asking what logic did you follow to get that output from that particular input.

How do you define minimum difference?

piston_pim_offset 2023-12-11

It was an axample. l didn't use anything, just looked at the numbers and wrote it.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

DGM 2023-12-12

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2059169-how-to-find-the-minimum-difference-between-the-3-elements-of-a-vector-in-app-designer#answer_1369644

在 MATLAB Online 中打开

I take this to mean the three elements of X with the smallest extreme spread. I don't see that pdist2() would work for that.

This might work, so long as the number of elements in X stays small.

X = randi([0 99],3,3)
X = 3×3
    65    46    98
    71    61    28
    91     4    26
C = nchoosek(X(:),3);
Crange = range(C,2);
row = Crange == min(Crange);
C(row,:)
ans = 1×3
    65    71    61

From what's given, there's no reason to think that there's a unique minimum combination. The first example @Dyuman Joshi gave is a good demonstration. The example I gave will return all combinations with the same minimum spread.