VerticalHorizontalFilter

//...
private VerticalHorizontalFilter VHFilter;
//...
protected override void Initialize()
{
    VHFilter = Indicators.VerticalHorizontalFilter(Bars.OpenPrices, 28);
    //...
}
public override void Calculate(int index)
{
    double value = VHFilter.Result[index];
    //...
}

import clr
clr.AddReference("cAlgo.API")

from cAlgo.API import *

class Test():
    def initialize(self):
        self.verticalHorizontalFilter = api.Indicators.VerticalHorizontalFilter(api.Bars.OpenPrices, 28)

    def calculate(self, index):
        value = self.verticalHorizontalFilter.Result[index]

using cAlgo.API;
using cAlgo.API.Indicators;

namespace cAlgo.Robots
{
    // This sample cBot shows how to use the Vertical Horizontal Filter indicator
    public partial class VerticalHorizontalFilterSample : Robot
    {
        private double _volumeInUnits;

        private VerticalHorizontalFilter _verticalHorizontalFilter;

        private SimpleMovingAverage _priceSimpleMovingAverage;
        private SimpleMovingAverage _verticalHorizontalFilterSimpleMovingAverage;

        public Position[] BotPositions
        {
            get
            {
                return Positions.FindAll(Label);
            }
        }

        protected override void OnStart()
        {
            _volumeInUnits = Symbol.QuantityToVolumeInUnits(VolumeInLots);

            _verticalHorizontalFilter = Indicators.VerticalHorizontalFilter(Bars.ClosePrices, 28);

            _verticalHorizontalFilterSimpleMovingAverage = Indicators.SimpleMovingAverage(_verticalHorizontalFilter.Result, 14);

            _priceSimpleMovingAverage = Indicators.SimpleMovingAverage(Bars.ClosePrices, 14);
        }

        protected override void OnBar()
        {
            if (_verticalHorizontalFilter.Result.Last(1) < _verticalHorizontalFilterSimpleMovingAverage.Result.Last(1)) return;

            if (Bars.ClosePrices.Last(1) > _priceSimpleMovingAverage.Result.Last(1) && Bars.ClosePrices.Last(2) <= _priceSimpleMovingAverage.Result.Last(2))
            {
                ClosePositions(TradeType.Sell);

                ExecuteMarketOrder(TradeType.Buy, SymbolName, _volumeInUnits, Label, StopLossInPips, TakeProfitInPips);
            }
            else if (Bars.ClosePrices.Last(1) < _priceSimpleMovingAverage.Result.Last(1) && Bars.ClosePrices.Last(2) >= _priceSimpleMovingAverage.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 VerticalHorizontalFilterSample():
    def on_start(self):
        self.volumeInUnits = api.Symbol.QuantityToVolumeInUnits(api.VolumeInLots)
        self.verticalHorizontalFilter = api.Indicators.VerticalHorizontalFilter(api.Bars.ClosePrices, 28)
        self.verticalHorizontalFilterSimpleMovingAverage = api.Indicators.SimpleMovingAverage(self.verticalHorizontalFilter.Result, 14)
        self.priceSimpleMovingAverage = api.Indicators.SimpleMovingAverage(api.Bars.ClosePrices, 14)

    def on_bar_closed(self):
        if self.verticalHorizontalFilter.Result.Last(0) < self.verticalHorizontalFilterSimpleMovingAverage.Result.Last(0):
            return

        if api.Bars.ClosePrices.Last(0) > self.priceSimpleMovingAverage.Result.Last(0) and api.Bars.ClosePrices.Last(1) <= self.priceSimpleMovingAverage.Result.Last(1):
            self.close_positions(TradeType.Sell)
            api.ExecuteMarketOrder(TradeType.Buy, api.SymbolName, self.volumeInUnits, api.Label, api.StopLossInPips, api.TakeProfitInPips)
        elif api.Bars.ClosePrices.Last(0) < self.priceSimpleMovingAverage.Result.Last(0) and api.Bars.ClosePrices.Last(1) >= self.priceSimpleMovingAverage.Result.Last(1):
            self.close_positions(TradeType.Buy)
            api.ExecuteMarketOrder(TradeType.Sell, api.SymbolName, self.volumeInUnits, api.Label, api.StopLossInPips, api.TakeProfitInPips)

    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"
    }
  ]
}