Function avg

pattern/db/__init__.py:336–340

Returns the arithmetic mean of the given list of values. For example: mean([1,2,3,4]) = 10/4 = 2.5.

(list)

_order = order

def avg(list):
    """ Returns the arithmetic mean of the given list of values.
        For example: mean([1,2,3,4]) = 10/4 = 2.5.
    """
    return float(_sum(list)) / (len(list) or 1)
    
def variance(list):
    """ Returns the variance of the given list of values.