JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. StatLib.ITweedie This function computes the tweedie cumulative distribution function. Syntax Parameters Return Value Function StatLib.ITweedie( _ x As Double, _ power As Double, _ mu As Double, _ phi As Double) As Double x [in] Type: Double power [in] Type: Double mu [in] Type: Double phi [in] Type: Double Double Copyright © 2020. TIBCO Software Inc. All Rights Reserved.