This function purges real-time data.

_ECLEAN(event,saveHistMillisec)

• If you do not supply any parameters on the function call, the function purges all real-time data for all events.
• If you supply the name of an event (event) on the function call, the function purges all real-time data for that event only.
• If you supply the amount of history that will be purged (saveHistMillisec), the function purges the real-time data that is older than the current time minus the value of saveHistMillisec (in milliseconds), for that event only.

Parameter	Type	Required/ Optional	Description
event	String	Optional	Specifies the name of the event whose real-time data will be purged.
saveHistMillisec	long	Optional	Specifies the amount of history that will be purged. The function purges the real-time data that is older than the current time minus the value of saveHistMillisec (in milliseconds).