How to find the starting position of the array from where its value is strictly increasing?

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Joe Abraham
Joe Abraham on 16 Jul 2012
I have a huge temperature data with 2000 values.
It takes a couple of minutes for thermocouple to stabilize and then it increases steadily. I want to find out the position from which it is strictly increasing.
Thanks

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Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 16 Jul 2012
Edited: Azzi Abdelmalek on 16 Jul 2012
y=[1 2 5 0 4 2 7 8 9]
%one line command
max([1 max((find(diff(y)<=0))+1)])
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Azzi Abdelmalek
Azzi Abdelmalek on 17 Jul 2012
Edited: Azzi Abdelmalek on 17 Jul 2012
Walter, it's never empty, it's a concatenation [1 v], if v is empty, the result is not, max([1 v]) will be 1

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More Answers (1)

Walter Roberson
Walter Roberson on 16 Jul 2012
pos = find( diff(YourData) <= 0, 1, 'last' ) + 1;
if isempty(pos); pos = 1; end

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