Multi-timeframe robots/indicators
Multi-timeframe robots/indicators
We added new functionality to cAlgo - the ability for robots and indicators to retrieve OHLCV data for multiple timeframes. This can be done using the MarketData.GetSeries method:
MarketSeries m5series = MarketData.GetSeries(TimeFrame.Minute5);
We recommend to call the GetSeries method in the Robot.OnStart() or the Indicator.Initialize() methods.
When the series for a specified timeframe is received, you can access the series values or build an indicator based on that series:
private MarketSeries m10;
private MovingAverage ma;
protected override void OnStart()
{
m10 = MarketData.GetSeries(TimeFrame.Minute10);
ma = Indicators.SimpleMovingAverage(m10.High, 14);
}The new version of our Demo cTrader and cAlgo is released and can be downloaded from www.spotware.com
Update: Backtesting of Multi-timeframe robots is supported now.
TimeFrame parameters
Another feature that has been introduced, is parameters of TimeFrame type that can be used in multi-timeframe robots and indicators:
using System;
using cAlgo.API;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;
using cAlgo.API.Requests;
using cAlgo.Indicators;
namespace cAlgo.Robots
{
[Robot(TimeZone = TimeZones.UTC)]
public class MultiTimeFrameBot : Robot
{
[Parameter("Another Timeframe", DefaultValue = "Minute10")]
public TimeFrame AnotherTimeFrame { get; set; }
protected override void OnStart()
{
var anotherSeries = MarketData.GetSeries(AnotherTimeFrame);
Print("My TimeFrame: {0}, Last high: {1}, Last Low: {2}", TimeFrame, MarketSeries.High.LastValue, MarketSeries.Low.LastValue);
Print("Another TimeFrame: {0}, Last high: {1}, Last Low: {2}", AnotherTimeFrame, anotherSeries.High.LastValue, anotherSeries.Low.LastValue);
}
}
}
As a result we have a robot like this:
Indicator example: Multi-timeframe moving average
In this example, we output moving averages with the same period for different timeframes on a single chart:
Source code:
using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
namespace cAlgo.Indicators
{
[Indicator(IsOverlay = true, TimeZone = TimeZones.UTC)]
public class MultiTF_MA : Indicator
{
[Parameter(DefaultValue = 50)]
public int Period { get; set; }
[Output("MA", Color = Colors.Yellow)]
public IndicatorDataSeries MA { get; set; }
[Output("MA5", Color = Colors.Orange)]
public IndicatorDataSeries MA5 { get; set; }
[Output("MA10", Color = Colors.Red)]
public IndicatorDataSeries MA10 { get; set; }
private MarketSeries series5;
private MarketSeries series10;
private MovingAverage ma;
private MovingAverage ma5;
private MovingAverage ma10;
protected override void Initialize()
{
series5 = MarketData.GetSeries(TimeFrame.Minute5);
series10 = MarketData.GetSeries(TimeFrame.Minute10);
ma = Indicators.MovingAverage(MarketSeries.Close, Period, MovingAverageType.Triangular);
ma5 = Indicators.MovingAverage(series5.Close, Period, MovingAverageType.Triangular);
ma10 = Indicators.MovingAverage(series10.Close, Period, MovingAverageType.Triangular);
}
public override void Calculate(int index)
{
MA[index] = ma.Result[index];
var index5 = GetIndexByDate(series5, MarketSeries.OpenTime[index]);
if (index5 != -1)
MA5[index] = ma5.Result[index5];
var index10 = GetIndexByDate(series10, MarketSeries.OpenTime[index]);
if (index10 != -1)
MA10[index] = ma10.Result[index10];
}
private int GetIndexByDate(MarketSeries series, DateTime time)
{
for (int i = series.Close.Count - 1; i > 0; i--)
{
if (time == series.OpenTime[i])
return i;
}
return -1;
}
}
}Multi-timeframe robot
This is the RSI robot. It uses a daily Average True Range value as a filter, i.e. it does not trade if the ATR value is greater than the specified parameter value:
using System;
using System.Linq;
using cAlgo.API;
using cAlgo.API.Indicators;
using cAlgo.API.Requests;
using cAlgo.Indicators;
namespace cAlgo.Robots
{
[Robot(TimeZone = TimeZones.UTC)]
public class SampleRSIRobot : Robot
{
[Parameter("Max ATR Value", DefaultValue = 0.01)]
public double MaxAtrValue { get; set; }
private RelativeStrengthIndex rsi;
private AverageTrueRange atr;
protected override void OnStart()
{
rsi = Indicators.RelativeStrengthIndex(MarketSeries.Close, 14);
var dailySeries = MarketData.GetSeries(TimeFrame.Daily);
atr = Indicators.AverageTrueRange(dailySeries, 20, MovingAverageType.Simple);
}
protected override void OnTick()
{
if (Trade.IsExecuting)
return;
// Do nothing if daily ATR value > Max allowed value
if (atr.Result.LastValue > MaxAtrValue)
return;
if (rsi.Result.LastValue < 30)
{
OpenPosition(TradeType.Buy);
}
else if (rsi.Result.LastValue > 70)
{
OpenPosition(TradeType.Sell);
}
}
private void OpenPosition(TradeType tradeType)
{
foreach (var position in Account.Positions)
{
if (position.Label == "SampleRSIRobot" && position.TradeType != tradeType)
{
Trade.Close(position);
}
}
bool hasNeededPosition = Account.Positions.Any(position => position.Label == "SampleRSIRobot" && position.TradeType == tradeType);
if (!hasNeededPosition)
{
var request = new MarketOrderRequest(tradeType, 10000)
{
Label = "SampleRSIRobot",
StopLossPips = 20
};
Trade.Send(request);
}
}
}
}
Hi,
we are welcoming this possibility to trade different time frames i cAlgo. A very much needed function for developers.
Thanks..
We are already working on it. Backtesting will be available very soon.
RE: RE:
andromeda said:
How that index relates to instantiated m10 or m1 for that matter ?
How often Calculate method is called by who and when and what is index relative to ?
(I know it is called at some irregular intervals in real time and any time a graph point is evaluated,
but I cannot correlate it to the last "10 minute" or "one minute" bar.)
The Calculate method is called on each historical bar in the series the instance is attached to (i.e. EURUSD H1). Once it reaches real time, it is called on each incoming tick of that symbol, as well as on each incoming tick of any other symbols for which the series are retrieved.
The "index" that is the parameter to the Calculate method, is the index of the series that the instance is attached to. The series of other timeframes / symbols have different indexes. So, to get the index of a specific series you would need to use a method such as GetIndexByDate (Described in the example above: Multi-timeframe moving average)
private int GetIndexByDate(MarketSeries series, DateTime time)
{
for (int i = series.Close.Count - 1; i > 0; i--)
{
if (time == series.OpenTime[i])
return i;
}
return -1;
}
}
}Descriptions are minimalistic. A simple question like Print method nowhere describes where
does the print go to. So far I know it goes o a log file, but could not find the log anywhere.
I find cAlgo exeptionally cool tool but I am having trouble to get started due to insufficient
description. C# is not an issue here but general concept of all classes and objects and how they tie together.
The Print method prints to the Log within the platform, not a log file. It is the last tab in the bottom panel of the chart view.
We are preparing a manual for cAlgo with more detailed descriptions of all the main classes in the API.
