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Difficulty storing Output from Loop (Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 2-by-1)

Asked by Jay Vankawala on 3 Jul 2019
Latest activity Commented on by Jay Vankawala on 4 Jul 2019
Accepted Answer by Jan
This loop works -
for i=1:19
x(find(y(start(i):end(i),:)
==max(y(start(i):end(i),:)))+ (start(i)-1))
end
However, when I try to store the answers in a matrix:
MatrixName = []
for i = 1:19;
MatrixName(i,:) = x(find(y(start(i):end(i),:)
==max(y(start(i):end(i),:)))+ (start(i)-1))
end
I get the following error:
%Unable to perform assignment because the size of the left side is 1-by-1 and
% the size of the right side is 2-by-1.
I think the reason is because in one of the loop iterations there are 2 answers instead of 1 (there are 2 x values when the variable y is at it's max). I can further confirm this because it actually does store the values in a matrix until it gets to that specific trial with 2 values, so that's probably the reason. How would I be able to store these answers?

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1 Answer

Answer by Jan
on 4 Jul 2019
Edited by Jan
on 4 Jul 2019
 Accepted Answer

To store arrays of different sizes, use a cell array:
KMaxSBPFullTime = cell(1, 19);
for i = 1:19
KMaxSBPFullTime{i} = ...
By the way, your code is extremely hard to read. Shorter names would increase the readability:
Result = cell(1, 19);
K5 = KFiveMinTimes;
Kend = KEndMinTimes;
SBP = KetamineRaw.SBP;
Time = KetamineRaw.Time;
for k = 1:19
tmp = SBP(K5(k):KEnd(k),:);
Result{k} = Time(find(tmp == max(tmp)) + K5(k) - 1);
end