How can I extract all matrix elements for one index with dynamic number of dimenstions?

1 Ansicht (letzte 30 Tage)
Philipp
Philipp am 6 Apr. 2017
Kommentiert: Philipp am 6 Apr. 2017
Hello experts,
let A be
A = rand(4, 4, 4); %
so what I want is:
B = reshape(A(1,:,:), [4 4])
The problem is the unknown dimension of A. So if A has the dimension of 3, I need 2 colon operator; if 4 then 3 and so on...
I am very thankful for any ideas...
BR

Melden Sie sich an, um diese Frage zu beantworten.

Akzeptierte Antwort

Andrei Bobrov
Andrei Bobrov am 6 Apr. 2017
ii = repmat({':'},1,ndims(A)-1);
out = squeeze(A(1,ii{:}));

Weitere Antworten (0)

Kategorien

Mehr zu Matrix Indexing finden Sie in Help Center und File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by