Using candle body range as source for SimpleMovingAverage

Created at 05 Jan 2024, 09:43

Joined 05.01.2024

Using candle body range as source for SimpleMovingAverage
05 Jan 2024, 09:43

Hello, I am new to cTrader having used TradingView for a number of years. I am having difficulty converting the simple pinescript code shown below over to ctrader.

I have so far:

var bar = Bars[0];

var body = Math.Abs(bar.Close - bar.Open);

but if I try to do:

var body_sma = Indicators.SimpleMovingAverage(body, 100) * 3.0;

I get the error: cannot convert from ’double' to ‘cAlgo.API.DataSeries’

How would I go about replicating the sma value?

indicator('Test', overlay=true)
body = math.abs(close - open)
body_sma = ta.sma(body, 100) * 3.0
buy = false
if close < open and body > body_sma
    buy := true
plotshape(buy, style=shape.arrowup, color=color.new(color.green, 0), location=location.belowbar)

@Cwebhook

Replies

ctrader.guru
05 Jan 2024, 12:14

I'm not sure what you want to do, but start with this approach, if you explain better what you want to achieve I can help you better

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

namespace cAlgo
{

    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class test : Indicator
    {
        protected override void Initialize()
        {

            SimpleMovingAverage sma = Indicators.SimpleMovingAverage(Bars.ClosePrices, 100);

            double  body = Math.Abs(Bars.ClosePrices.Last(0) - Bars.OpenPrices.Last(0));

            double body_sma = sma.Result.Last(0) * 3.0;
            
        }

        public override void Calculate(int index)
        {
            
        }
        
    }
    
}

@ctrader.guru

Cwebhook
05 Jan 2024, 14:31 ( Updated at: 06 Jan 2024, 08:16 )

RE: Using candle body range as source for SimpleMovingAverage

ctrader.guru said:

I'm not sure what you want to do, but start with this approach, if you explain better what you want to achieve I can help you better

using cAlgo.API;using cAlgo.API.Indicators;using System;namespace cAlgo{    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]    public class test : Indicator    {        protected override void Initialize()        {            SimpleMovingAverage sma = Indicators.SimpleMovingAverage(Bars.ClosePrices, 100);            double  body = Math.Abs(Bars.ClosePrices.Last(0) - Bars.OpenPrices.Last(0));            double body_sma = sma.Result.Last(0) * 3.0;                    }        public override void Calculate(int index)        {                    }            }    }

Thanks for the reply.

The body var returns a pip value of the current candle, in tradingview that pip value is passed directly to the sma function which then returns an average pip value, for example if I log the output to the data window these are those 2 values, which are changing in realtime with tick data. I'm trying to achieve the same in ctrader but no idea how to.

@Cwebhook

ctrader.guru
06 Jan 2024, 08:46

I think I understand, you don't need to manipulate the SMA, you can recreate it, this is a simple example:

using System;
using cAlgo.API;
using cAlgo.API.Internals;

namespace cAlgo
{

    [Indicator(IsOverlay = false, AccessRights = AccessRights.None)]
    [Levels(0.0005)]
    public class BodySMA : Indicator
    {

        [Parameter("Period", DefaultValue = 10, MinValue = 2)]
        public int Period { get; set; }

        [Output("Average", LineColor = "DodgerBlue")]
        public IndicatorDataSeries Average { get; set; }

        protected override void Initialize()
        {
            
            // TODO

        }

        public override void Calculate(int index)
        {

            if (index < Period) return;

            double sum = 0;
            for (int i = index - Period + 1; i <= index; i++)
            {

                sum += Math.Abs( Bars.ClosePrices[i] - Bars.OpenPrices[i]);
            
            }
            
            Average[index] = Math.Round( sum / Period, Symbol.Digits);

        }

    }

}

@ctrader.guru

Cwebhook
10 Jan 2024, 12:56

RE: Using candle body range as source for SimpleMovingAverage

ctrader.guru said:

I think I understand, you don't need to manipulate the SMA, you can recreate it, this is a simple example:

using System;using cAlgo.API;using cAlgo.API.Internals;namespace cAlgo{    [Indicator(IsOverlay = false, AccessRights = AccessRights.None)]    [Levels(0.0005)]    public class BodySMA : Indicator    {        [Parameter("Period", DefaultValue = 10, MinValue = 2)]        public int Period { get; set; }        [Output("Average", LineColor = "DodgerBlue")]        public IndicatorDataSeries Average { get; set; }        protected override void Initialize()        {                        // TODO        }        public override void Calculate(int index)        {            if (index < Period) return;            double sum = 0;            for (int i = index - Period + 1; i <= index; i++)            {                sum += Math.Abs( Bars.ClosePrices[i] - Bars.OpenPrices[i]);                        }                        Average[index] = Math.Round( sum / Period, Symbol.Digits);        }    }}

Thank you! that is what I was after.

@Cwebhook

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