Separate arrays within loop using indexing?

1 vue (au cours des 30 derniers jours)
Nicholas Kavouris
Nicholas Kavouris le 5 Avr 2022
I have matricies for start and stop time of system cycle. How can i iterate this over a raw dataset so that each loop produces a new matirix containing the points from start(i) to stop(i)?
start and stop will have equal elements but may have numel 1-20
if start has 5 elements loop will produce data.1-data.5
What im looking for:
ex start=[1,8]; stop=[7,11]
data=[2,2,2,3,3,4,4,2,3,4,4,2]
ans=
data.1=[2,2,2,3,3,4,4]
data.2=[2,3,4,4]
have tried:
for k=1:numel(start)
seperated_data(k)=data(start(k):stop(k))
end

Réponse acceptée

DGM
DGM le 5 Avr 2022
You should just be able to use a cell array.
start = [1,8];
stop = [7,11];
data = [2,2,2,3,3,4,4,2,3,4,4,2];
% same thing, but with a cell array
seperated_data = cell(numel(start),1);
for k = 1:numel(start)
seperated_data{k}=data(start(k):stop(k));
end
% show the contents of the output
celldisp(seperated_data)
seperated_data{1} = 2 2 2 3 3 4 4 seperated_data{2} = 2 3 4 4
  1 commentaire
Nicholas Kavouris
Nicholas Kavouris le 5 Avr 2022
Worked like a charm! Thank you.

Connectez-vous pour commenter.

Plus de réponses (1)

Walter Roberson
Walter Roberson le 5 Avr 2022
start = [1,8];
stop = [7,11];
data = [2,2,2,3,3,4,4,2,3,4,4,2];
seperated_data = arrayfun(@(B,E) data(B:E), start, stop, 'uniform', 0)
seperated_data = 1×2 cell array
{[2 2 2 3 3 4 4]} {[2 3 4 4]}

Catégories

En savoir plus sur Loops and Conditional Statements dans Help Center et File Exchange

Produits


Version

R2021b

Community Treasure Hunt

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

Start Hunting!

Translated by