net.esper.view.stat
Class CorrelationView
java.lang.Object
net.esper.view.ViewSupport
net.esper.view.stat.BaseBivariateStatisticsView
net.esper.view.stat.CorrelationView
- All Implemented Interfaces:
- Iterable<EventBean>, CloneableView, EventCollection, View, Viewable
public final class CorrelationView
- extends BaseBivariateStatisticsView
- implements CloneableView
A view that calculates correlation on two fields. The view uses internally a CorrelationBean
instance for the calculations, it also returns this bean as the result.
This class accepts most of its behaviour from its parent, BaseBivariateStatisticsView
. It adds
the usage of the correlation bean and the appropriate schema.
CorrelationView
public CorrelationView(ViewServiceContext viewServiceContext,
String xFieldName,
String yFieldName)
- Constructor.
- Parameters:
xFieldName
- is the field name of the field providing X data pointsyFieldName
- is the field name of the field providing X data pointsviewServiceContext
- contains required view services
cloneView
public View cloneView(ViewServiceContext viewServiceContext)
- Specified by:
cloneView
in interface CloneableView
getEventType
public EventType getEventType()
- Description copied from interface:
EventCollection
- Provides metadata information about the type of object the event collection contains.
- Specified by:
getEventType
in interface EventCollection
- Returns:
- metadata for the objects in the collection
toString
public String toString()
- Overrides:
toString
in class Object
createEventType
protected static EventType createEventType(ViewServiceContext viewServiceContext)
- Creates the event type for this view.
- Parameters:
viewServiceContext
- is the event adapter service
- Returns:
- event type of view