Problem with sum of numbers in array; first i want just the first number, then 1st and 2nd; then 1st, 2nd and 3rd all the way to the last.

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Hello, Iam trying to make a sum of numbers going from just the first number all the way to the 1st+2nd+3rd+...+last number.
Iam getting error "Index exceeds the number of array elements. Index must not exceed 1." and dont know what Iam doing wrong.3
This is the code I have so far.
x = load('ceny.txt');
x = sort(x);
x_pocet=numel(x);
for i=1:x_pocet
trzba = sum(x(1:x_pocet(i)))
end
"ceny.txt" is just a document with random numbers ranging from 1 to 1000.

Accepted Answer

David Hill
David Hill on 18 Dec 2021
cumsum(x)
  1 Comment
Matyas Lehky
Matyas Lehky on 18 Dec 2021
Not at all what I wanted from the code, but you gave me the correct answer to my question. Back to the drawing board it is. Thank you very much!

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R2021b

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