ExponentialMovingAverage
interface cAlgo.API.Indicators
DesktopCLICloud
The exponential moving average of the price data source over a period of time.
Definition
public interface ExponentialMovingAverage
Namespace: cAlgo.API.Indicators · Group: Indicators · Implements: MovingAverage, StandardIndicator
Remarks
The exponential moving average is similar to the simple moving average, but applies more weight to more recent data. The weighting for each older price data decreases exponentially. Therefore the exponential moving average reacts faster to latest price changes than the simple moving average.
Examples
Example 1
public partial class EmaExample : Indicator
{
private ExponentialMovingAverage _emaFast;
private ExponentialMovingAverage _emaSlow;
protected override void Initialize()
{
// initialize new instances of ExponentialMovingAverage Indicator class
_emaFast = Indicators.ExponentialMovingAverage(Price, FastPeriods);
// _emaSlow is the exponential moving average of the emaFast
_emaSlow = Indicators.ExponentialMovingAverage(_emaFast.Result, SlowPeriods);
}
public override void Calculate(int index)
{
// If the index is less than SlowPeriods don't calculate
if(index <= SlowPeriods)
{
return;
}
if(_emaFast.Result.HasCrossedAbove(_emaSlow.Result,0))
{
// Print the index at which the fast ema crossed the slow ema
Print("Fast EMA Has Crossed Above at index = {0}", index);
}
}
}
import clr
clr.AddReference("cAlgo.API")
from cAlgo.API import *
class Test():
def initialize(self):
self.emaFast = api.Indicators.ExponentialMovingAverage(api.Price, api.FastPeriods)
# emaSlow is the exponential moving average of the emaFast
self.emaSlow = api.Indicators.ExponentialMovingAverage(self.emaFast.Result, api.SlowPeriods)
def calculate(self, index):
# If the index is less than SlowPeriods don't calculate
if index <= api.SlowPeriods:
return
if Functions.HasCrossedAbove(self.emaFast.Result, self.emaSlow.Result, 0):
# Print the index at which the fast ema crossed the slow ema
api.Print(f"Fast EMA Has Crossed Above at index = {index}")
{
"Parameters": [
{
"Name": "Price",
"DisplayName": "Data Source",
"Type": "DataSeries"
},
{
"Name": "SlowPeriods",
"DisplayName": "Slow Periods",
"Type": "Integer",
"DefaultValue": 10
},
{
"Name": "FastPeriods",
"DisplayName": "Fast Periods",
"Type": "Integer",
"DefaultValue": 5
}
]
}
Example 2
using cAlgo.API;
using cAlgo.API.Indicators;
namespace cAlgo.Robots
{
// This sample cBot shows how to use the Exponential Moving Average indicator
public partial class ExponentialMovingAverageSample : Robot
{
private double _volumeInUnits;
private ExponentialMovingAverage _fastExponentialMovingAverage;
private ExponentialMovingAverage _slowExponentialMovingAverage;
public Position[] BotPositions
{
get
{
return Positions.FindAll(Label);
}
}
protected override void OnStart()
{
_volumeInUnits = Symbol.QuantityToVolumeInUnits(VolumeInLots);
_fastExponentialMovingAverage = Indicators.ExponentialMovingAverage(Bars.ClosePrices, 9);
_slowExponentialMovingAverage = Indicators.ExponentialMovingAverage(Bars.ClosePrices, 20);
}
protected override void OnBar()
{
if (_fastExponentialMovingAverage.Result.Last(1) > _slowExponentialMovingAverage.Result.Last(1) && _fastExponentialMovingAverage.Result.Last(2) < _slowExponentialMovingAverage.Result.Last(2))
{
ClosePositions(TradeType.Sell);
ExecuteMarketOrder(TradeType.Buy, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
}
else if (_fastExponentialMovingAverage.Result.Last(1) < _slowExponentialMovingAverage.Result.Last(1) && _fastExponentialMovingAverage.Result.Last(2) > _slowExponentialMovingAverage.Result.Last(2))
{
ClosePositions(TradeType.Buy);
ExecuteMarketOrder(TradeType.Sell, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
}
}
private void ClosePositions(TradeType tradeType)
{
foreach (var position in BotPositions)
{
if (position.TradeType != tradeType) continue;
ClosePosition(position);
}
}
}
}
import clr
clr.AddReference("cAlgo.API")
# Import cAlgo API types
from cAlgo.API import *
# Import trading wrapper functions
from robot_wrapper import *
class ExponentialMovingAverageSample():
def on_start(self):
self.volumeInUnits = api.Symbol.QuantityToVolumeInUnits(api.VolumeInLots)
self.fastExponentialMovingAverage = api.Indicators.ExponentialMovingAverage(api.Bars.ClosePrices, 9)
self.slowExponentialMovingAverage = api.Indicators.ExponentialMovingAverage(api.Bars.ClosePrices, 20)
def on_bar_closed(self):
if self.fastExponentialMovingAverage.Result.Last(0) > self.slowExponentialMovingAverage.Result.Last(0) and self.fastExponentialMovingAverage.Result.Last(1) < self.slowExponentialMovingAverage.Result.Last(1):
self.close_positions(TradeType.Sell)
api.ExecuteMarketOrder(TradeType.Buy, api.SymbolName, self.volumeInUnits, api.Label)
elif self.fastExponentialMovingAverage.Result.Last(0) < self.slowExponentialMovingAverage.Result.Last(0) and self.fastExponentialMovingAverage.Result.Last(1) > self.slowExponentialMovingAverage.Result.Last(1):
self.close_positions(TradeType.Buy)
api.ExecuteMarketOrder(TradeType.Sell, api.SymbolName, self.volumeInUnits, api.Label)
def get_bot_positions(self):
return api.Positions.FindAll(api.Label)
def close_positions(self, tradeType):
for position in self.get_bot_positions():
if position.TradeType != tradeType:
continue
api.ClosePosition(position)
{
"AccessRights": "None",
"TimeZone": "UTC",
"Parameters": [
{
"Name": "VolumeInLots",
"DisplayName": "Volume (Lots)",
"Type": "Double",
"DefaultValue": 0.01
},
{
"Name": "StopLossInPips",
"DisplayName": "Stop Loss (Pips)",
"Type": "Double",
"DefaultValue": 10
},
{
"Name": "TakeProfitInPips",
"DisplayName": "Take Profit (Pips)",
"Type": "Double",
"DefaultValue": 10
},
{
"Name": "Label",
"Type": "String",
"DefaultValue": "Sample"
}
]
}
Inherited members
From MovingAverage: Result
From StandardIndicator: AddToChart, Symbol, TimeFrame, Bars