Examples—Data set methods in rule expressions
The examples use the following study object names:
- Study event–Visit1
- Form–Vitals
- Item–Pulse
- Data set–VitalSigns
Structure
You must use the following structure when you use a method in a rule expressions.
![Rule expression using methods Rule expression using methods](img/rule-expression-structure.png)
1—Name of the data set.
2—Name of the method.
3—Filtering information created when you provide a value for the parameter or parameters of the method.
To use a method in a rule expression:
- Double-click the method.
If the method has one or more parameters, the Invoke Function dialog box appears.
- Drag a study object from the References tab to the Values field to define a value for each parameter.
Examples
The following table provides examples of rule expressions that you can use to obtain a subset of a data set. The examples use the study object names defined for the examples.
Rule expression | Returns a data set subset with data from.. |
---|---|
VitalSigns.StudyEvent(StudyEvents.Visit1) |
Visit1 only. |
VitalSigns.StudyEvent(StudyEvents.Visit1).Form(Forms.Vitals) |
The Vitals form in Visit1 only. |
VitalSigns.StudyEvent(StudyEvents.Visit1).Form(Forms.Vitals). Item(Items.Pulse) |
The Pulse item on the Vitals form in the Visit1 study event. |
VitalSigns.Form(Forms.Vitals) |
The Vitals form in any study event. |
VitalSigns.StudyEvent(StudyEvents.Visit1).Item(Items.Pulse) |
The Pulse item on any form in the Visit1 study event. |
Parent topic: Methods for data sets