Fstream an Array into file and then finding it's Average and Standard Deviation

[robertlenos]

Problem solved, thanks.

Any help will be much appreciated. Thank you.

[bluezor]

One problem in moments() -

for (int i = 0; i <= size; i++)
{
    total += array[i];
}

Given size is the size of the array, you are trying to access the final element of the array which doesn't exist.
(arrays start at 0 and end at 1 below how many elements)

[robertlenos]

So take out i<=size and instead just put i<size?

[robertlenos]

Anybody have any idea why my average and standard deviation is way off?

[guestgulkan]

In the moments() function you are using local variables (ave and stdDev) .
These are only available in the moments function and do not affect/change the variables of the same name in the mainfunction.
You should pass these variables by reference or by pointer