average of each two vectors of a matrix

21 Ansichten (letzte 30 Tage)
Niki am 9 Okt. 2014
Kommentiert: Stephen23 am 9 Okt. 2014
I have a matrix of n*n for example 10*5
Then I want to get the average of each two row. For example the first two row (each element ) etc
I will have a matrix of 5*5 after that

Akzeptierte Antwort

Iain am 9 Okt. 2014
(x(2:2:10,:) + x(1:2:9,:))/2
Thats the "simple" answer. There are other methods that are more flexible, but which need a little more thought eg.:
y = reshape(x,[2,5,5])
answer = squeeze(mean(y));
  1 Kommentar
Stephen23 am 9 Okt. 2014
The first solution can also be generalized a little using end instead of hardcoded limits:
(x(2:2:end,:) + x(1:2:end,:))/2

Melden Sie sich an, um zu kommentieren.

Weitere Antworten (1)

Azzi Abdelmalek
Azzi Abdelmalek am 9 Okt. 2014
Bearbeitet: Azzi Abdelmalek am 9 Okt. 2014
a=reshape(mean(permute(reshape(x',5,2,[]),[2 1 3])),5,5)'


Mehr zu Creating and Concatenating Matrices finden Sie in Help Center und File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by