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.

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.

Answer 1

[David Hill]

cumsum(x)

[Matyas Lehky]

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!