StDevPReturns the standard deviation of a population represented by a series of non-blank values in field.field - any related field, repeating field, or set of non-repeating fields; or an expression that returns a field, repeating field, or set of non-repeating fields.Field can be any of the following:

• a repeating field (repeatingField).

• a field in matching related records specified by (table::field), whether or not these records appear in a portal.

• 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 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 tables (table 1::field A;table 2::field B...).A portal displays the related values 5, 6, 7, and 8 in the field Scores. StDevP(table::Scores) returns 1.11803398....StDevP(Field4) results in an error because the population standard deviation of a single number is not defined.StDevP(Field2) returns 1.11803398... for a non-repeating field.Note When a referenced field is a repeating field, the StDevP function returns the standard deviation of a population in the first repetition fields, then the standard deviation of a population in the second repetition fields, and so on.

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