Analytic value binding

Analytic value binding

This binding associates a traditional value ORD with the Px View.

Under the hood, this binding creates an analyticValue: ord. However, since analytic values cannot be subscribed to like points, this binding automatically refreshes the value.

Figure 220. Analytic Value Binding properties

Property	Value	Description
degradeBehavior	`Disable` or `None`	Specifies the framework’s behavior when the binding analytic ORD cannot be resolved or used due to security permissions.
hyperlink	ORD	Provides a link to another object. When this property contains an ORD, the hyperlink is active in the browser or in the Px Viewer.
summary	text or BFormat	Formats the summary string that is displayed in the status bar on mouse over.
popupEnabled	`true` or `false` (default)	Turns the use of a second popup on and off. `true` allows a second popup (right-click menu) to open when a user clicks on this label from a browser or from the Px Viewer. `false` disables the popup action. You would use this setting to prevent actions from being executed at a control point from a specific Px graphic while allowing access to the action from a different Px graphic or Property Sheet.
data	tag or algorithm name	Specifies the an algorithm (or tag) used to retrieve data. The purpose of an alert is to detect a fault condition (Boolean value result). In most cases, you would pick an algorithm that has a Boolean result when configuring this property for an alert. Algorithms with a numeric or enum value greater than zero are considered true and less than zero are considered false. This is how output from one algorithm becomes the input data source to another algorithm. The prefix for algorithms is alg:.
node	ORD(defaults to a relative ORD slot, which is resolved against the config space to which the Px view is assigned)	Defines the ORD to the desired slot.
dataFilter	ORD parameter	Identifies data sources in the subtree of the request node. When a predicate accepts a node that contains the desired data, the system does not search the node’s subtree for additional values (including the root node).
aggregation	check box (if optional, and) drop-down list (property, defaults to `First`) or ORD parameter (aggregation=option)	Configures the default function to apply when the analytic request needs to combine values from multiple data sources into a single value. This applies to both value and trend requests. If aggregation is not enabled in the binding/settings window, the aggregation value defined in the Data Definition applies to all chart bindings, reports and tables. `And` returns the logical “and” of Boolean values. `Avg` returns the statistical mean, which is determined by calculating the sum of all values and dividing by the number of values. `Count` returns the total number or quantity of values in a combination. If you request this value on a binding in a PX view, the system counts the number of values based on the properties defined by the data source block and the algorithm’s Property Sheet. `First` returns the first value in the combination. `Last` returns the last value in the combination. `Max` returns the highest value in the combination. `Median` returns the value in the middle of a sorted combination—the number that separates the higher half from the lower half. `Min` returns the lowest value in the combination. `Mode` returns the statistically most frequently occurring number in the combination. `Or` returns the logical “or” of Boolean values. `Range` returns the statistical difference between the largest and smallest values in the combination. `Sum` adds together all values in the combination resulting in a single value. `Load Factor` returns the average value divided by peak value. `Std Dev` returns the standard deviation of the values in the combination.
unit	unit=option (unit of measure)	Selects the unit name and display symbol to associate with a data source.