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[...] 1.0);
paramLookbackForStepPattern = CreateParameter("Lookback", 3, 1, 20, 1);
}
bool isInsideBody( int bar, double price ) {
return price bar ,Close bar ) && price >= Math.Min(Open bar ,Close bar );
}
bool Upstep( int bar, int lookback ) {
bool result = false;
bool way1 = (Open bar > Close bar & Open bar+1 bar+1 [...]
[...] obj.CreatePane(30,true,true);
obj.PlotSeries(p, adx, Color.Red, LineStyle.Solid, 2 );
for(int bar = obj.GetTradingLoopStartBar(1); bar bar bar > avgMAB bar )
obj.BuyAtMarket(bar+1,"Strong Trend"); if( adx bar > adxMult * adxLow bar && obj.CrossOver(bar, adx, crit) & c bar > avgMAB bar [...]
[...] WealthLab.Strategies
{
public class TradingTheAussie : WealthScript
{
private DataSeries SecBol( DataSeries ds, int period )
{
DataSeries sd = 2 * StdDev.Series(ds, period, StdDevCalculation.Population);
return 1 + ( ( ds - SMA.Series(ds, period) + sd ) / ( sd + sd + 0.0001 ) );
}
protected override void Execute()
{
string sampleSym = "YBA"; // out-of-sample; use "YTC" for in-sample
const double pct = 0.007;
int per = 30;
bool synch = false;
DataSeries xau = GetExternalSymbol("XAU", synch).Close; [...]
[...] 8.0) * Deg2Rad);
double c2 = b1;
double c3 = -a1 * a1;
double c1 = 1 - c2 - c3; for (int bar = 2; bar bar = 0.5*(1 + alpha1)*(Close bar - Close bar-1 ) + alpha1*HP bar-1 ;
//Smooth with a SuperSmoother Filter
Filt bar = c1*(HP bar + HP bar-1 ) / 2 + c2*Filt bar-1 + c3*Filt bar-2 [...]
[...] from recent peaks or troughs. System rules Once a bullish divergence is detected, enter long next bar at open if MFO is below its centerline Exit long next bar at open when MFO crosses above the centerline Trades from the short side are deliberately not taken as their performance seems poor. Figure 1. Bullish divergence between the MFO and price formed in June 2015 triggered a long trade in KO (Coca Cola). After updating the TASCIndicators library to v2015.09 or later, the MoneyFlowOscillator indicator can be found under the TASC [...]
[...] atr = ATR.Series(Bars, atrPeriod);
var trendFilter = SMA.Series(Close, maPeriod);
for(int bar = GetTradingLoopStartBar(Math.Max(atrPeriod,maPeriod)); bar bar > High bar - 1 && Low bar bar - 1 && Close bar bar - 1 ;
bool keyRevBull = High bar > High bar - 1 && Low bar [...]
Bars, Loops, and Bar + 1
Original article by Robert Sucher in the legacy Knowledge Base here .
Wealth-Lab Developer has features such as order slippage and variable commissions to bring trading simulation as close to reality as possible. Likewise, your task as a trading system designer is to express your system in C# code that validly recreates security orders as they would have been and will be executed in real life. Bar Definition
A bar is any interval of time that has an open, high, low, and closing [...]
[...] to create a Pullback in an Uptrend entry. For instance, in an established uptrend, wait for a three bar pullback and
enter at stop $0.10 above prior bar high. However, the Rule Wizard doesn't seem to have "Buy at Stop" rule desired. Solution:
You can get pretty close by starting with these rules: BuyAtLimit (High)
- Moving Average is trending up (Moving Average group)
- Price decreases a consecutive number of bars (Price (or Volume) group) ..and add an exit (if you only want a screen, see Techniques > Creating a Screener in the WealthScript [...]
[...] StrategyParameter paramExitDays;
public SRSI_Divergence()
{
paramPeriod = CreateParameter("SRSI period", 6, 1, 100, 1);
paramPeriodWMA = CreateParameter("WilderMA period", 14, 1, 100, 1);
paramThresholdForTrend = CreateParameter("ADX Threshold", 30, 10, 50, 10);
paramHighest = CreateParameter("Highest high of", 20, 5, 50, 1);
paramExitDays = CreateParameter("Exit after", 20, 1, 50, 1);
}
protected override void Execute()
{
bool peak = false; int peakBar = -1;
int high = paramHighest.ValueInt;
bool trough [...]
[...] MADXY;
StrategyParameter chnlLength;
public MyStrategy()
{
D1DXY = CreateParameter("DX LRSlope Period", 25, 10, 50, 1);
D2SNL = CreateParameter("Snl LRSlope Period", 12, 5, 25, 1);
LRSDXYSELL = CreateParameter("DX LRSlope", 0.3, 0.1, 0.8, 0.1);
LRSNLSELL = CreateParameter("Snl LRSlope", -0.8, -1.2, -0.5, 0.1 );
MASELL = CreateParameter("Soybean EMA Period", 15, 5, 25, 1);
MASNL = CreateParameter("Snl EMA Period", 15, 5, 25, 1);
MADXY = CreateParameter("DX MA [...]
[...] WealthScript
{
LineStyle ls = LineStyle.Solid;
public DataSeries RS2t(DataSeries ds, string index, int period = 10, bool plotSeries = false)
{
var rs = new DataSeries(ds, string.Format("RS2t({0},{1},{2}", ds.Description, index, period));
var extSym = GetExternalSymbol(index, true);
var RS1 = ds / extSym.Close; var Fast = EMAModern.Series(RS1, period); //Fast MA: Orange
var Med = SMA.Series(Fast, 7); //Medium MA: Green
var Slow = SMA.Series(Fast, 15); //Slow MA: Red
var Vslow = [...]
[...] indicatorLowest = Lowest.Series( WM, low );
Lowest hLow = Lowest.Series( Low, low );
for(int bar = GetTradingLoopStartBar(130); bar bar-1 == Highest.Series( High, high ) bar-1 )
& ( WM bar-1 == Highest.Series( WM, high ) bar-1 )
& TurnDown( bar, High ) & TurnDown( bar, WM ) )
{
peak = true; peakBar = bar-1; [...]
[...] StrategyParameter paramPeriod;
public PZOStrategy()
{
paramPeriod = CreateParameter("PZO Period", 14, 2, 252, 2);
}
protected override void Execute()
{
int period = paramPeriod.ValueInt;
DataSeries R = new DataSeries( Bars, "R" );
DataSeries TV = EMA.Series( Close, period, EMACalculation.Modern );
DataSeries PZO = new DataSeries( Bars, "PZO" );
ADX adx = ADX.Series( Bars,14 );
EMA ema = EMA.Series( Close, 60, EMACalculation.Modern );
for(int bar [...]
[...] StrategyParameter paramPeriod;
public VZOStrategy()
{
paramPeriod = CreateParameter("VZO Period", 14, 2, 252, 2);
}
protected override void Execute()
{
int period = paramPeriod.ValueInt;
DataSeries R = new DataSeries( Bars, "R" );
DataSeries TV = EMA.Series( Volume, period, EMACalculation.Modern );
DataSeries VZO = new DataSeries( Bars, "VZO" );
ADX adx = ADX.Series( Bars,14 );
EMA ema = EMA.Series( Close, 60, EMACalculation.Modern );
for(int bar [...]
[...] programmed the long-only Tr&nd stop strategy for Wealth-Lab 5 in C#. You can use the sliders to adjust the Period and atrFactor Strategy Parameters to eyeball an optimization, or using WLP 5.4 you can now run full Exhaustive and Monte Carlo optimizations. A portfolio simulation ($5000 size, $8 1-way commissions) on the Dow 30 symbols over the last 6 years yielded the 2-Parameter optimization curve in Figure 1. Figure 1. While the optimization didn’t inspire confidence in the strategy’s stability over a wide range of parameters, ATR Factors around 2 helped improve the overall [...]
[...] of our example Strategy, we take a standard Renko chart and use Daily prices. Despite using the same period, the HA-based average always lags behind due to added smoothing. The rules are: When the 8-period “fast” average crosses above the “slower” counterpart of the same period, a long position is established. When the 8-period “fast” average crosses below the “slower” average of the same period, the long position is closed. Figure 1. A Wealth-Lab [...]
[...] process considered intraday data instead. As a result, our aggregate voting indicator polls for the 21-period Stochastic readings on 60-minute, Daily, Weekly, Monthly, Quarterly and Yearly time frames. The code below requires intraday data which you can get for free or on a subscription basis from different providers such as Tiingo, Alpha Vantage or DTN IQFeed. We use a modified version of author’s Example 2 which can take multiple positions in the same symbol. Strategy rules: Long setup : Buying pressure >= 5 Buy tomorrow at open each time when selling pressure is [...]
[...] above the 2nd one and the previous value was less than or equal to the target value at the previous bar. Motivated traders can compare approaches by commenting and uncommenting these lines:
if( CrossUnder( bar, tpEma, haEma ) )
//if( tpEma bar bar )
...
if( CrossOver( bar, tpEma, haEma ) )
//if( tpEma bar > haEma bar )
To run the sample Strategy in Wealth-Lab, you'll need the TASCIndicators [...]
[...] the average MTR by 3 standard deviations of MTR or greater. An entry is triggered when: Buy next bar at market if today's close price has declined. Short next bar at market if today's close price has increased. A position is exited with a simple trailing channel exit: Exit long when today's low price has broke below the 3-day lowest price. Cover short when today's high price has broke above the 3-day highest price. This system is merely a proof-of-concept. Among possible enhancements to this barebone system, the following can be [...]
[...] WealthLab.Strategies
{
public class EmpiricalModeDecomp : WealthScript
{
StrategyParameter _period;
StrategyParameter _delta;
StrategyParameter _fraction;
public EmpiricalModeDecomp()
{
_period = CreateParameter("Period", 20, 5, 50, 1);
_delta = CreateParameter("Delta", 0.5, 0.05, 1, 0.05);
_fraction = CreateParameter("Fraction", 0.25, 0.1, 1, 0.05);
} public DataSeries BandPassSeries(DataSeries ds, int period, double delta)
{
DataSeries [...]
[...] for easy reference in users' Strategies. Here's the complete list of Strategy rules: Enter long next bar at open if following conditions are met:
Stock price greater than $1 50-day simple moving average of volume is greater than 100,000 Yesterday’s close was less than the day before Yesterday’s close was less than its open Today’s open is greater than yesterday’s close Today’s close is greater than yesterday’s open Today’s open is less than yesterday’s open As of yesterday’s close, price had been closing lower for three days Sell short next bar [...]
Syntax
public static int GetTime(this WealthScript obj, int bar)
public static int GetTime(this Bars bars, int bar) // For use when using a non-synchronized Bars object public int GetTime(int bar)
public int GetTime(Bars bars, int bar) // For use when using a non-synchronized Bars object
Parameter Description bar Bar number bars Bars object GetTime returns 24-hour time as an integer. Example: 4pm = 1600
Syntax [...]
Syntax
public static double ChandelierStop(this Position p, Bars bars, int bar, int period, double coefficient ) public double ChandelierStop(Bars bars, int bar, Position p, int period, double coefficient )
Parameter Description p Position to apply Chandelier stop to period TR period for Chandelier stop calculation coefficient ATR factor for Chandelier stop calculation bars Bars object bar [...]
[...] slider2;
private StrategyParameter slider3;
public MyStrategy()
{
slider1 = CreateParameter("Regression Period",50,2,300,20);
slider2 = CreateParameter("Div.Mom. Period",50,2,300,20);
slider3 = CreateParameter("ROC Period",3,2,300,20);
}
protected override void Execute()
{
var fxy = GetExternalSymbol("FXY",true);
var spy = GetExternalSymbol("SPY",true);
var rd = RegressionDivergence.Series(Bars,fxy,spy,slider1.ValueInt,slider2.ValueInt,slider3.ValueInt);
int STD = 25, OB = 90,//STOCHASIC
D1 [...]
[...] determine and compare time of day
public class MyStrategy : WealthScript
{
public int GetTime(int bar)
{
return Date bar .Hour * 100 + Date bar .Minute;
}
protected override void Execute()
{
// Specifically, I use a strategy that buys stocks only in the time period between 9:55 am and 13:00. for(int bar = 1; bar = 0955 ) & ( GetTime(bar) Identify the Open price of the day when [...]
[...] The resulting countertrend system's rules are: Enter long: Buy tomorrow at open if today's a “gold bar” (a.k.a. CAM-PB i.e. 10-period ADX and MACD declines) but the 14-period CCI is above 0, or if today's a “blue bar” (i.e. the 10-period ADX declines but MACD rises) and today's Close crosses above the 13-period EMA .
Exit long: Sell tomorrow at open if today's a “red bar” (a.k.a. CAM-CT i.e. 10-
[...] changed from 12 to 51, and DataSeries initializations have been simplified. // WAS:
double Trend = ds bar - ds cycPeriod ;
// SHOULD BE (IS):
double Trend = ds bar - ds bar - cycPeriod ; /* Strategy Code revised 20090611 */
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using WealthLab;
using WealthLab.Indicators; namespace WealthLab.Strategies
{
public class CoronaCharts : WealthScript
{
public const double twoPi = 2 * Math.PI;
public [...]
[...] Daily
HideVolume();
SetScaleDaily();
Bars dailyBars = Bars;
DataSeries CompBar = new DataSeries(Bars, "Compressed Bar Numbers");
for (int bar = 0; bar bar = bar;
RestoreScale();
dailyBars = Synchronize(dailyBars);
DataSeries GetDailyBar = Synchronize(CompBar); // Initialize an instance of the CamarillaPoint class
Camarilla c = new Camarilla();
double tick = Bars.SymbolInfo.Tick;
bool enterTrades = true;
bool canTrade = true;
Entry e = paramEntryType.ValueInt [...]
Syntax public ARSI(DataSeries ds, int period, string description)
public static ARSI Series(DataSeries ds, int period)
Parameter Description
ds
The source DataSeries
period
The indicator period.
Description The ARSI (Asymmetrical RSI) indicator from the October 2008 issue of Stocks & Commodities magazine.
Open Issues
(18427) FirstValidValue after Synchronize is incorrect for ARSI
Example /* WealthScript from Oct 2008 Traders' Tip [...]
[...] CreatePane(30,true,true);
PlotSymbol(spyPane,spy,Color.Blue,Color.Red);
PlotSeries(spyPane,spySma,Color.Blue,WealthLab.LineStyle.Solid,1);
}
for(int bar = GetTradingLoopStartBar(200); bar bar bar - Bars.SymbolInfo.Tick [...]