For given vector, make a "averaged vector"

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JaeSung Choi
JaeSung Choi 2017-12-17
编辑： Jan 2017-12-17
For a given 1 by 1000 vector A = (a1 a2 a3 a4 so on,,a1000) and interger n
I want to make vector
B = (b1 b2 b3 so on,,b(1000-n+1))
with b1 = a1 + a2 + a3 ...+a(n), b2 = a2 + a3 + ....+a(n+1), b(1000-n+1) = a(1000-n+1)+a(1000-n+2)+...a(1000)
Please help me. How can i make such vector B??

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采纳的回答

Jan
Jan 2017-12-17
编辑：Jan 2017-12-17
b = movsum(a, [0, n], 'Endpoints', 'discard')

更多回答（1 个）

Walter Roberson
Walter Roberson 2017-12-17
temp = [0, cumsum(A)];
B = temp(n+1:end) - temp(1:end-n);

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