Справочник Пользователя для Filemaker Pro 8.5 Educational Maintenance T1 TJ086LL/A
Модели
TJ086LL/A
18 FileMaker Functions Reference
Average
Format
Average(field{;field...})
Parameter
field - any
,
; or an
that returns a field, repeating field, or set of non-repeating fields.
Parameters in curly braces { } are optional.
Parameters in curly braces { } are optional.
Data type returned
number
Description
Returns a value that is the average of all valid, non-blank values in field, where field
can be any of the following:
•
•
a repeating field (repeatingField).
•
a field in matching
specified by (table::field), whether or not
.
•
several non-repeating fields in a record(field1;field2;field3...).
•
corresponding repetitions of repeating fields in a record
(repeatingField1;repeatingField2;repeatingField3), if the result is
(repeatingField1;repeatingField2;repeatingField3), if the result is
returned in a repeating field with at least the same number of repeats.
•
several fields in the first matching record specified by
(table::field1;table::field2;...). You can include fields from different
(table::field1;table::field2;...). You can include fields from different
(table 1::field A;table 2::field B...).
Examples
A Student table has a portal showing scores for all exams a student has taken. The exam
scores are in a table called Exams.
scores are in a table called Exams.
Average(Exams::Score) returns the student’s average score for all exams she has
taken.
In the following examples:
• Field1 contains two repetitions with values of 1 and 2.
• Field2 contains four repetitions with values of 5, 6, 7, and 8.
• Field3 contains 6.
In the following examples:
• Field1 contains two repetitions with values of 1 and 2.
• Field2 contains four repetitions with values of 5, 6, 7, and 8.
• Field3 contains 6.
Average(Field2) returns
6.5
when the calculation isn’t a repeating field.
Average(Field1;Field2;Field3) returns
4
,
4
,
7
,
8
when the calculation is a
repeating field.