How to create time windows given start and stop indices
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Anas Khan
el 10 de Nov. de 2022
Comentada: Image Analyst
el 10 de Nov. de 2022
I have 2 vectors of indices: 1 for start times and 1 for end times:
>> size(trainStarts)
ans =
20 1
>> size(trainEnds)
ans =
20 1
Is there a way to, without using loops, that I can create a new variable representing windows that would be like trainStarts(1) : trainEnds(1), trainStarts(2) : trainEnds(2) and so on?
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Respuesta aceptada
Voss
el 10 de Nov. de 2022
Here's one way:
trainStarts = [2 10 15];
trainEnds = [6 12 21];
result = arrayfun(@(x,y)x:y,trainStarts,trainEnds,'UniformOutput',false)
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Más respuestas (1)
Image Analyst
el 10 de Nov. de 2022
Editada: Image Analyst
el 10 de Nov. de 2022
Yes, but why? What's wrong with having them in separate arrays.
for k = 1 : length(trainStarts)
thisRange = trainStarts(k) : trainEnds(k);
% Now do something with thisRange.
end
If you want to store/keep all the ranges separately you need to put them into cells because each range might be a different number of elements.
for k = 1 : length(trainStarts)
thisRange{k} = trainStarts(k) : trainEnds(k);
% Now do something with thisRange.
end
If you don't know what a cell array is see the FAQ:
2 comentarios
Image Analyst
el 10 de Nov. de 2022
Then use my first snippet rather than my second snippet or the answer you Accepted. No sense storing stuff you don't need to store.
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