NullableNumberPerTimeInterval

Overview

Abstract data type

A physical quantity of dimension T^-1 (inherited from NullableFrequency) for the application type number per time interval. NullableNumberPerTimeInterval is abstract and has two concrete subtypes:

• a NumberPerTimeInterval is an actual value for a physical quantity with a numerical value and a unit of measurement;

• a NullNumberPerTimeInterval is a null value that explicitly indicates the absence of an actual physical quantity.

Supertypes

• NullableFrequency

Subtypes

• NullNumberPerTimeInterval

• NumberPerTimeInterval

Implementation in Proteus Schema

All data attributes with type NullableNumberPerTimeInterval are implemented as DEXPI generic attributes for physical quantities.

Example

See the examples for NumberPerTimeInterval and NullNumberPerTimeInterval.