How to delete adjacent values

7 次查看（过去 30 天）

Nao 2022-10-25

评论： Nao 2022-10-27

Hello

I have a vector of 1400x1 with several adjacent values (values with a difference of less than 1).

For example, my data looks like

A = [1 5 6 7 8 9 10 11 12 20 21 22 23]'

I'd like to delete the row that is adjacent to the previous one, so my expected outcome will be [1; 5; 20]

Any ideas on how to do this? I appreciate your help!

Davide Masiello 2022-10-25

A = [1 5 6 7 8 9 10 11 12 20 21 22 23];
A([false,diff(A) == 1]) = []
A = 1×3
     1     5    20

Image Analyst 2022-10-26

But since you said "a difference of less than 1" you'd want <1 instead of == 1

A([false;diff(A) < 1]) = []

Of course then your expected outcome is not right. Maybe you mean "a difference of 1 or less" in which case it would be

A([false;diff(A) <= 1]) = []

Nao 2022-10-27

thats a great point! thank you!

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