How to create time windows given start and stop indices
1 view (last 30 days)
Show older comments
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?
0 Comments
Accepted Answer
Voss
on 10 Nov 2022
Here's one way:
trainStarts = [2 10 15];
trainEnds = [6 12 21];
result = arrayfun(@(x,y)x:y,trainStarts,trainEnds,'UniformOutput',false)
0 Comments
More Answers (1)
Image Analyst
on 10 Nov 2022
Edited: Image Analyst
on 10 Nov 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 Comments
Image Analyst
on 10 Nov 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.
See Also
Categories
Find more on Matrix Indexing in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!