Vocabulary
math.statistics

Inputs and outputs

seq	a sequence
x	a non-negative real number

Word description
Computes the arithmetic mean of the elements in seq.

Examples

USING: math.statistics prettyprint ; { 1 2 3 } mean .
2

Errors
Throws a signal-error. (divide by zero) if the sequence is empty.

Definition

IN: math.statistics

: mean ( seq -- x ) 0 mean-ddof ; inline