Filemaker Pro 8.5 Educational Maintenance T3 TJ083LL/A User Manual

Chapter 2

  

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  Aggregate functions     27

 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. 

If the calculation result isn’t a repeating field:

Sum(Field2) returns 

.

Sum(Field1;Field2;Field3) returns 

.

If the calculation result is a repeating field:

Sum(Field2) returns a repeating field with 

 in the first repetition.

Sum(Field1;Field2;Field3) returns a repeating field with 

, 

, 

, 

.

When a referenced field is a repeating field, the Sum function returns the sum of the 

first repetition field, then the sum of the second repetition field, and so on.

Variance(field{;field...})

field - any 

, 

; or an 

that returns a field, repeating field, or set of non-repeating fields.
Parameters in curly braces { } are optional.

number

Returns the variance of a sample represented by a series of non-blank values. The 
variance of a distribution is a measure of how spread out the distribution is. Use this 
function on any of the following fields:
•

a repeating field (repeatingField).

•

a field in matching 

 specified by (table::field), whether or not 

these records appear in a 

•

several non-repeating fields in a record (field1;field2;field3...).

•

corresponding repetitions of repeating fields in a 

(repeatingField1;repeatingField2;repeatingField3), if the result is 

returned in a repeating field with at least the same number of repeats.