Effacer les filtres
Effacer les filtres

splitting an array of numbers

2 vues (au cours des 30 derniers jours)
Greg
Greg le 10 Oct 2012
I have an array of numbers, for example numbers = rand(1000,1);
I have another array of numbers indicating the offsets for the groups, for example,
offsets = [1, 100, 250, 900, 1000];
so the
first group = numbers(1:100)
second group = numbers(101:250)
third group = numbers(251:900)
fourth group = numbers(901:1000)
I could use a for loop to identify the groups but I want to know if there is a faster way.

Réponses (2)

Andrei Bobrov
Andrei Bobrov le 10 Oct 2012
numbers = rand(1000,1);
offsets = [0, 100, 250, 900, 1000];
out = mat2cell(numbers,diff(offsets),1);

Azzi Abdelmalek
Azzi Abdelmalek le 10 Oct 2012
Modifié(e) : Azzi Abdelmalek le 10 Oct 2012
v=rand(1000,1)
offsets = [0, 100, 250, 900, 1000];
out=arrayfun(@(x) v(offsets(x)+1:offsets(x+1)),1:numel(offsets)-1,'uni',false)

Catégories

En savoir plus sur Matrices and Arrays dans Help Center et File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by