I get 'error using sum' whenever I try to get the mean of some numbers.

Anyone have any idea why?

This is from my command window:

Any help would be appreciated.

[Rik]

You're entering the 3 values as parameters, not as an array. You may read the documentation to see some examples.

Answer 1

[Alan Stevens]

mean([1.0411, 1.0184, ...etc])

Enclose the numbers within square brackets.