Select only determined rows in a matrix
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Emilio Pulli
am 28 Nov. 2021
Kommentiert: Emilio Pulli
am 28 Nov. 2021
I have a matrix composed of 200 rows and I want to copy in another matrix one every 10 rows obtaining a final matrix of 20 rows...is there a smart way to do it or do I have to use a for loop to index the orws I want to copy?
0 Kommentare
Akzeptierte Antwort
the cyclist
am 28 Nov. 2021
% First matrix
A = rand(200,2);
% New matrix
B = A(10:10:end,:); % This will start with the 10th row. You could do B = A(1:10:end,:) to start with the first row.
Weitere Antworten (1)
DGM
am 28 Nov. 2021
Something like this. You'll have to adjust the starting index as needed:
A = repmat((1:100).',[1 4]) % smaller example (100x4)
B = A(10:10:end,:)
Siehe auch
Kategorien
Mehr zu Multidimensional Arrays 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!