Syntax
public SVEHLZZperc(Bars bars, double priceChange, int atrPeriod, double atrFactor, TASCIndicators.SVEHLZZperc_Type type, string description)
public static SVEHLZZperc Series(Bars bars, double priceChange, int atrPeriod, double atrFactor, TASCIndicators.SVEHLZZperc_Type type)Parameter Description
| bars | The Bars object | 
| priceChange | Percent price change | 
| atrPeriod | ATR Lookback period | 
| atrFactor | ATR Factor | 
| type | Type of indicator calculation: Percent, ATR, Combined Percent+ATR, Point | 
Description
This zigzag indicator is supporting to Sylvain Vervoort's Traders' Tips article series (Stocks & Commodities magazine). The zigzag indicator from June 2013 issue of Stocks & Commodities magazine is a trailing reverse indicator that is based on a percent price change between high and low prices, or uses an ATR volatility factor, or both of them combined.
As a later addition, starting from v2019.02 of 
TASCIndicators we've added a new 
type: SVEHLZZperc_Type.Point. In this mode, the 
priceChange parameter accepts a value of the price change expressed in 
points (or ticks) as opposed to percent/ATR-based change in the other modes.
Example
Please refer to: 
The 1-2-3 Wave Count (Vervoort).