Modified on 2008/05/03 16:11 by Administrator — Categorized as: Standard Indicators


public static Indicators.TroughBar Series(DataSeries source, double reversalAmount, Indicators.PeakTroughMode mode)
public static double Value(int bar, DataSeries source, double reversalAmount, Indicators.PeakTroughMode mode)

Parameter Description

source Price series
reversalAmount How much of a percentage/point (see mode) decline is required to trigger a new Trough
mode PeakTroughMode enum: (PeakTroughMode.Value, PeakTroughMode.Percent)


Returns the bar number at which the last Trough that was identified for the specified Price Series as of the specified Bar. The Reversal parameter determines how much of a percentage (default) or point decline is required to trigger a new Trough. It typically requires a few bars of upward price movement to reach the Reversal level and qualify a new Trough. The Trough function never "looks ahead" in time, but always returns the Trough value as it would have been determined as of the specified bar. For this reason, the return value of the Trough function will lag, and report troughs a few bars later than they actually occurred in hindsight. This is intentional, and allows peak/trough detection to be used when back-testing trading systems.


See Trough



See Trough


using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators;

namespace WealthLab.Strategies { public class MyStrategy : WealthScript { protected override void Execute() { // Flag bars that are 5% Troughs int n = -1; int nPrev = -1; for(int bar = 0; bar < Bars.Count; bar++) { n = (int)TroughBar.Value( bar, Low, 5, PeakTroughMode.Percent ); if( ( n != nPrev ) && ( n > -1 ) ) { DrawCircle( PricePane, 6, n, Low[n], Color.Green, LineStyle.Solid, 2, true ); nPrev = n; } } } } }