AVERAGE(Products[Price]) : The average of the all values in the Price column of the Products table. Equivalent to
AVERAGE(SELECT(Products[Price], TRUE)). See also SELECT().
AVERAGE([Discounts]) : The average of the all items in the Discounts column value, where Discounts is of type List for some numeric type.
AVERAGE(LIST(1, 2, 3)) : 2.00
AVERAGE(LIST(0) - LIST(0)) (a valid constructed list with a type but no items): 0.00
Average of Select Rows
Compute average product rating from customer feedback within the past month, excluding feedback with no rating:
([Product Rating] > 0),
([Submitted] >= (EOMONTH(TODAY(), -2) + DAY(TODAY())))
SELECT(Feedback[Product Rating], ...)gets a list of Product Rating values from select rows of the Feedback table.
AND(..., ...)limits the SELECT() results to only those rows that match all of the conditions.
([Product Rating] > 0)limits the selection to only rows with a Product Rating value greater than zero, where 0 is the default value and indicates "no rating".
([Submitted] >= ...)further limits the rows to those with a submission date on or after the computed date.
(EOMONTH(TODAY(), -2) + DAY(TODAY()))computes the date one month prior to today.
AVERAGE(...)computes the average of the selected values.
AVERAGE(1, 2, 3) : the arguments are not in list form. To fix, wrap them in LIST() to construct a list:
AVERAGE(LIST(1, 2, 3)).
AVERAGE( some-list )
some-list (list of any numeric type)
Decimal: the computed average of the values of some-list