I have a list of 120 elements in a column, and I need to sum each 12 elements and then sum together the next 12 so from the 120 values I will have 12 different sum values.

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Megan Mirkhanian 2020-2-10

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评论： KSSV 2020-2-10

I just need a for loop to get the sum of each 12 elements in the column for 10 consequative times.

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Answer 1

KSSV 2020-2-10

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编辑：KSSV 2020-2-10

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YOu need not to use a loop for this...... reshape your column and use sum.

c = rand(120,1) ;  % your column matrix 
iwant = sum(reshape(12,[])) ;

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Answer 2

hari 2020-2-10

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sum = 0;
temp = 0;
totalSum = [];
for i = 1:length(c)
    sum = sum+c(i);
    temp = temp+1;
    if (temp == 12)
        ttalSum = [totalSum sum];
        sum = 0;
        temp = 0;
    end
end

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Walter Roberson 2020-2-10

We firmly recommend that you never use sum as the name of a variable, as it is very common to also need to use sum() as a function call.

This is especially important when you are using scripts, because that variable named sum is going to be left in the workspace and you are going to get very confused when you have forgotten it and try to use sum() function.