How to calculate distance between array elements?

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Hajem Daham
Hajem Daham 2018-4-9
评论： Hajem Daham 2018-4-10
Hi, Let say I have this array:
A = [1 3 5 1 4 1 2 6 1]
the distances between elements are:
1-3-5-1:
1 to 3 = 2
3 to 5 = 1
5 to 1 = 3
1-4-1:
1 to 4 = 2
4 to 1 = 1
1-2-6-1:
1 to 2 = 3
2 to 6 = 1
6 to 1 = 2
what I need is to accumulate the distance of elements between every two ones, and if the distance between every two ones is greater than 5 then a penalty of 3 should be added to the total distance of the whole array. For example the distance between 1-3-5-1 = 6, so in this case, a penalty of 3 should be added to the total distance and so on.
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Guillaume
Guillaume 2018-4-9
I'm not any clearer. How is the distance from 3 to 5 not equal to 2? And from 5 to 1 not equal to 4?
Hajem Daham
Hajem Daham 2018-4-9
don't focus on numbers its just example if you know how to do the coding please answer, otherwise leave it.

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采纳的回答

Matt J
Matt J 2018-4-9
编辑：Matt J 2018-4-9
I too find the post hard to interpret, but maybe this is what you want:
A = [1 3 5 1 4 1 2 6 1];
dist=cumsum([0 2 1 3 2 1 3 1 2]); %distances from start
onelocs=find(A==1);
D=dist(onelocs(2:end)) - dist(onelocs(1:end-1)); %distance between ones
totalDistance=dist(end) + 3*sum(D>5)

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