Sum Method¶

 //...
 SimpleMovingAverage sma;
 protected override void Initialize()
 {
     sma = Indicators.SimpleMovingAverage(source, period);
 }
 public override void Calculate(int index)
 {
     // IsRising returns true if the current value is greater
     // than the previous value in the data series
     if (Functions.IsRising(sma.Result))
     {
         //Do something
     }
     // IsFalling returns true if the current value is less
     // than the previous value in the data series
     else if(Functions.IsFalling(sma.Result))
     {
         // Do something else
     }
     else // sma is level
     {
         Do something else
     }
     //...
 }

 using cAlgo.API;
 using cAlgo.API.Indicators;
 namespace cAlgo
 {
     // This sample shows how to use the data series functions
     [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
     public class DataSeriesFunctionsSample : Indicator
     {
         private SimpleMovingAverage _smaFast, _smaSlow;
         protected override void Initialize()
         {
             _smaFast = Indicators.SimpleMovingAverage(Bars.ClosePrices, 9);
             _smaSlow = Indicators.SimpleMovingAverage(Bars.ClosePrices, 20);
         }
         public override void Calculate(int index)
         {
             if (_smaFast.Result.HasCrossedAbove(_smaSlow.Result, 1))
             {
                 // Fast MA crossed above slow MA
             }
             if (_smaFast.Result.HasCrossedBelow(_smaSlow.Result, 1))
             {
                 // Fast MA crossed below slow MA
             }
             if (_smaFast.Result.Maximum(10) > _smaSlow.Result.Maximum(10))
             {
                 // Fast MA last 10 values maximum is larger than slow MA last 10 values
             }
             if (_smaFast.Result.Minimum(10) < _smaSlow.Result.Minimum(10))
             {
                 // Fast MA last 10 values minimum is smaller than slow MA last 10 values
             }
             if (_smaFast.Result.IsFalling() && _smaSlow.Result.IsRising())
             {
                 // Fast MA is falling and slow MA is raising
                 // IsFalling and IsRising compares last two values of the data series
             }
             if (_smaFast.Result.Sum(10) > _smaSlow.Result.Sum(10))
             {
                 // Fast MA last 10 values sum is larger than slow MA last 109 values sum
             }
         }
     }
 }