MATLAB Answers

sum of array elements with specific condition?

4 views (last 30 days)
lets say I had A=[1 0 1 1 0 1 0 1 0 0 1 1 1 1]; then I want B(1)=sum of all A elements, B(2)= sum all elements of A from A(2) excluding a(1), similarly for B(3) = sum of all A elements with excluding A(1),A(2) and so on...then B should be B=[9 8 8 7 7 6 5 5 4 4 4 3 2 1] thanks

Accepted Answer

Stephen Cobeldick
Stephen Cobeldick on 29 Aug 2018
>> fliplr(cumsum(fliplr(A)))
ans =
9 8 8 7 6 6 5 5 4 4 4 3 2 1

More Answers (1)

jonas
jonas on 29 Aug 2018
Edited: jonas on 29 Aug 2018
This seems to be what you are after:
fliplr(cumsum(fliplr(A)))
ans =
9 8 8 7 6 6 5 5 4 4 4 3 2 1
5th digit is off. Could it be a mistake on your end?

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!