>>The formula in excel is STDEVPA(). Foxpro is assuming the data supplied is the universe, as opposed to the standard function in Excel which assumes that the data is just a sample. I think this is because, unlike fox, excel can only perform stdev on 30 values.
>
>Do you know how to obtain, in VFP, the std() based on a sample? Note: I don't need this, I am just curious.
>
>Hilmar.

Multiply by sqrt( n / (n - 1) )