Average Nodes in Policy Designer

An Average node is a Calculation node that you can use in a policy model to calculate the average value of data in a specified column of a collection.

The input for an Average node must be a collectionA set of results from a Query node or a set of readings associated with input nodes such as Measurement Location, Health Indicator, or OPC Tag. with a column containing numeric or time-based values. The output of an Average node, Value, contains the average value of data in the specified column.

Node Properties

The Properties window for an Average node contains the items that are described in the following table.

Item	Description	Notes
Collection section	Specifies the collection that contains the values that you want to average.	You can select to specify the output of a predecessor node in this section.
Collection Column section	Specifies the column that contains that values that you want to average.	This list contains the columns that are available in the selected collection. The column that you select must contain numeric or time-based values.

Item

Description

Notes

Collection section

Specifies the collection that contains the values that you want to average.

You can select to specify the output of a predecessor node in this section.

Collection Column section

Specifies the column that contains that values that you want to average.

This list contains the columns that are available in the selected collection.

The column that you select must contain numeric or time-based values.