How to count each element in array

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Kenneth Sabandar 2019-3-21

评论： Kenneth Sabandar 2019-3-23

in my case, i have an array enveloped in for loop

for i = 1:6
array = [0.5 1 5 2 7 3]
end

now i want to show the result of sum in array element (ex: 0.5 + 1 on first iteration, then 1.5(result of previous iteration) + 5 and so on)

the code that i already try is :

array(i) = array(i) + array(i-1)

but i can't get the result. i already tried with temp, but the problem persists.

thank you

Walter Roberson 2019-3-21

What you had before

array(i) = array(i) + array(i-1)

should work, provided i starts at 2.

... But you need to be sure not to overwrite all of array in the loop. The assignment to array should not have been in a loop.

thank you! i really appreciate it

Krishna Kumar 2019-3-21

Are you just interested in this?

array = [0.5 1 5 2 7 3];
sum=cumsum(array)

If you just want add two neighbouring terms, this should work:

sum= array(1:end-1)+array(2:end)

which basically adds an element with previous one.

thank you! solved my problem right away :)

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