Category Volatility  Published on 12/03/2022

CSI (Currency Strength Index)

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Description

The currency strength index is one of the useful indicators that help us to evaluate the market sentiment and determine the direction of Liquidity flow.

Overbought/Oversold, Convergence and Divergence, Money flow direction and Curves-cross are some of the famous information that CSI provides for traders.

Be aware that there is not a single method to calculate currency strength, So you may see some differences between the various versions of CSI's.

Our approach in this tool is looking at 28 different pairs and calculating the strength of 8 major currencies through calculating the ratio of bodies to the length of candles over the special periods:
(Close - Open) / (High - Low) over a special period

In this tool, you can choose which currency you want to be reported. The colors are adjustable and the report is based on the current chart timeframe.

 

More info or contact: algo3xp3rt@gmail.com      Or     github.com/J-Yaghoubi

 



////////////////////////////////////////////////////////////////////////////////////////
///                                         CSI                                      ///
///                       (Strength Index of 8 Major Forex Currencies)               ///
///                                                                                  ///
///         Publish date  1-MARCH-2022                                               ///
///         Version  1.0.0                                                           ///
///         By  Seyed Jafar Yaghoubi                                                 ///
///         License  MIT                                                             ///
///         More info https://github.com/J-Yaghoubi/                                 ///
///         Contact  algo3xp3rt@gmail.com                                            ///
///                                                                                  ///
////////////////////////////////////////////////////////////////////////////////////////


using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;
using System.Text;

namespace cAlgo
{
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None, ScalePrecision = 1)]
    public class CSI : Indicator
    {

        #region parameters

        [Parameter("Period", DefaultValue = 14, MinValue = 1, Group = "General Settings")]
        public int Period { get; set; }

        [Parameter("Show Values", DefaultValue = true, Group = "General Settings")]
        public bool valuePrint { get; set; }

        [Parameter("Values Color", DefaultValue = "FF7030A0", Group = "General Settings")]
        public Colors valueColor { get; set; }

        [Parameter("AUD Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool audEnable { get; set; }

        [Parameter("NZD Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool nzdEnable { get; set; }

        [Parameter("JPY Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool jpyEnable { get; set; }

        [Parameter("GBP Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool gbpEnable { get; set; }

        [Parameter("CHF Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool chfEnable { get; set; }

        [Parameter("EUR Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool eurEnable { get; set; }

        [Parameter("USD Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool usdEnable { get; set; }

        [Parameter("CAD Enable", DefaultValue = true, Group = "Enable/Disable")]
        public bool cadEnable { get; set; }


        [Output("AUD", LineColor = "FF33C1F3")]
        public IndicatorDataSeries _audSI { get; set; }

        [Output("NZD", LineColor = "FF0071C1")]
        public IndicatorDataSeries _nzdSI { get; set; }

        [Output("JPY", LineColor = "FF7030A0")]
        public IndicatorDataSeries _jpySI { get; set; }

        [Output("GBP", LineColor = "FF805F00")]
        public IndicatorDataSeries _gbpSI { get; set; }

        [Output("CHF", LineColor = "FF008000")]
        public IndicatorDataSeries _chfSI { get; set; }

        [Output("EUR", LineColor = "FFFFFF01")]
        public IndicatorDataSeries _eurSI { get; set; }

        [Output("USD", LineColor = "FFFFFFFF")]
        public IndicatorDataSeries _usdSI { get; set; }

        [Output("CAD", LineColor = "FFFF3334")]
        public IndicatorDataSeries _cadSI { get; set; }

        #endregion


        #region Global variables

        private Bars EURAUD, EURNZD, EURJPY, EURGBP, EURCHF, EURCAD, EURUSD, AUDUSD, NZDUSD, USDJPY,
        GBPUSD, USDCHF, USDCAD, AUDJPY, NZDJPY, GBPJPY, CHFJPY, CADJPY, GBPAUD, GBPNZD,
        GBPCHF, GBPCAD, AUDNZD, NZDCHF, NZDCAD, AUDCHF, AUDCAD, CADCHF;

        StringBuilder Display_TEXT;

        #endregion


        #region Ctrader Events
        protected override void Initialize()
        {
            /* Loading Pairs Data*/

            if (audEnable)
            {
                //aud pairs
                AUDNZD = MarketData.GetBars(Chart.TimeFrame, "AUDNZD");
                AUDJPY = MarketData.GetBars(Chart.TimeFrame, "AUDJPY");
                GBPAUD = MarketData.GetBars(Chart.TimeFrame, "GBPAUD");
                AUDCHF = MarketData.GetBars(Chart.TimeFrame, "AUDCHF");
                EURAUD = MarketData.GetBars(Chart.TimeFrame, "EURAUD");
                AUDUSD = MarketData.GetBars(Chart.TimeFrame, "AUDUSD");
                AUDCAD = MarketData.GetBars(Chart.TimeFrame, "AUDCAD");
            }

            if (nzdEnable)
            {
                //nzd pairs
                AUDNZD = MarketData.GetBars(Chart.TimeFrame, "AUDNZD");
                NZDJPY = MarketData.GetBars(Chart.TimeFrame, "NZDJPY");
                GBPNZD = MarketData.GetBars(Chart.TimeFrame, "GBPNZD");
                NZDCHF = MarketData.GetBars(Chart.TimeFrame, "NZDCHF");
                EURNZD = MarketData.GetBars(Chart.TimeFrame, "EURNZD");
                NZDUSD = MarketData.GetBars(Chart.TimeFrame, "NZDUSD");
                NZDCAD = MarketData.GetBars(Chart.TimeFrame, "NZDCAD");
            }

            if (jpyEnable)
            {
                //jpy pairs
                AUDJPY = MarketData.GetBars(Chart.TimeFrame, "AUDJPY");
                NZDJPY = MarketData.GetBars(Chart.TimeFrame, "NZDJPY");
                GBPJPY = MarketData.GetBars(Chart.TimeFrame, "GBPJPY");
                CHFJPY = MarketData.GetBars(Chart.TimeFrame, "CHFJPY");
                EURJPY = MarketData.GetBars(Chart.TimeFrame, "EURJPY");
                USDJPY = MarketData.GetBars(Chart.TimeFrame, "USDJPY");
                CADJPY = MarketData.GetBars(Chart.TimeFrame, "CADJPY");
            }

            if (gbpEnable)
            {
                //gbp pairs
                GBPAUD = MarketData.GetBars(Chart.TimeFrame, "GBPAUD");
                GBPNZD = MarketData.GetBars(Chart.TimeFrame, "GBPNZD");
                GBPJPY = MarketData.GetBars(Chart.TimeFrame, "GBPJPY");
                EURGBP = MarketData.GetBars(Chart.TimeFrame, "EURGBP");
                GBPCHF = MarketData.GetBars(Chart.TimeFrame, "GBPCHF");
                GBPUSD = MarketData.GetBars(Chart.TimeFrame, "GBPUSD");
                GBPCAD = MarketData.GetBars(Chart.TimeFrame, "GBPCAD");
            }

            if (chfEnable)
            {
                //chf pairs
                AUDCHF = MarketData.GetBars(Chart.TimeFrame, "AUDCHF");
                NZDCHF = MarketData.GetBars(Chart.TimeFrame, "NZDCHF");
                CHFJPY = MarketData.GetBars(Chart.TimeFrame, "CHFJPY");
                GBPCHF = MarketData.GetBars(Chart.TimeFrame, "GBPCHF");
                EURCHF = MarketData.GetBars(Chart.TimeFrame, "EURCHF");
                USDCHF = MarketData.GetBars(Chart.TimeFrame, "USDCHF");
                CADCHF = MarketData.GetBars(Chart.TimeFrame, "CADCHF");
            }

            if (eurEnable)
            {
                //eur pairs
                EURAUD = MarketData.GetBars(Chart.TimeFrame, "EURAUD");
                EURNZD = MarketData.GetBars(Chart.TimeFrame, "EURNZD");
                EURJPY = MarketData.GetBars(Chart.TimeFrame, "EURJPY");
                EURGBP = MarketData.GetBars(Chart.TimeFrame, "EURGBP");
                EURCHF = MarketData.GetBars(Chart.TimeFrame, "EURCHF");
                EURUSD = MarketData.GetBars(Chart.TimeFrame, "EURUSD");
                EURCAD = MarketData.GetBars(Chart.TimeFrame, "EURCAD");
            }

            if (usdEnable)
            {
                //usd pairs
                AUDUSD = MarketData.GetBars(Chart.TimeFrame, "AUDUSD");
                NZDUSD = MarketData.GetBars(Chart.TimeFrame, "NZDUSD");
                USDJPY = MarketData.GetBars(Chart.TimeFrame, "USDJPY");
                GBPUSD = MarketData.GetBars(Chart.TimeFrame, "GBPUSD");
                USDCHF = MarketData.GetBars(Chart.TimeFrame, "USDCHF");
                EURUSD = MarketData.GetBars(Chart.TimeFrame, "EURUSD");
                USDCAD = MarketData.GetBars(Chart.TimeFrame, "USDCAD");
            }

            if (cadEnable)
            {
                //cad pairs
                AUDCAD = MarketData.GetBars(Chart.TimeFrame, "AUDCAD");
                NZDCAD = MarketData.GetBars(Chart.TimeFrame, "NZDCAD");
                CADJPY = MarketData.GetBars(Chart.TimeFrame, "CADJPY");
                USDCAD = MarketData.GetBars(Chart.TimeFrame, "USDCAD");
                GBPCAD = MarketData.GetBars(Chart.TimeFrame, "GBPCAD");
                CADCHF = MarketData.GetBars(Chart.TimeFrame, "CADCHF");
                EURCAD = MarketData.GetBars(Chart.TimeFrame, "EURCAD");
            }

        }

        public override void Calculate(int index)
        {
            /* Calculate value at specified index and return the values */


            if (index < Period)
                return;

            Display_TEXT = new StringBuilder();

            if (audEnable)
            {
                Bars[] pairs = 
                {
                    AUDNZD,
                    AUDJPY,
                    GBPAUD,
                    AUDCHF,
                    EURAUD,
                    AUDUSD,
                    AUDCAD
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "AUD"), 0);
                _audSI[index] = currencyIndex;
                Display_TEXT.Append("AUD  " + _audSI[index].ToString());
                Display_TEXT.AppendLine();
            }

            if (nzdEnable)
            {
                Bars[] pairs = 
                {
                    AUDNZD,
                    NZDJPY,
                    GBPNZD,
                    NZDCHF,
                    EURNZD,
                    NZDUSD,
                    NZDCAD
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "NZD"), 0);
                _nzdSI[index] = currencyIndex;
                Display_TEXT.Append("NZD  " + _nzdSI[index].ToString());
                Display_TEXT.AppendLine();
            }

            if (jpyEnable)
            {
                Bars[] pairs = 
                {
                    AUDJPY,
                    NZDJPY,
                    GBPJPY,
                    CHFJPY,
                    EURJPY,
                    USDJPY,
                    CADJPY
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "JPY"), 0);
                _jpySI[index] = currencyIndex;
                Display_TEXT.Append("JPY  " + _jpySI[index].ToString());
                Display_TEXT.AppendLine();
            }

            if (gbpEnable)
            {
                Bars[] pairs = 
                {
                    GBPAUD,
                    GBPNZD,
                    GBPJPY,
                    EURGBP,
                    GBPCHF,
                    GBPUSD,
                    GBPCAD
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "GBP"), 0);
                _gbpSI[index] = currencyIndex;
                Display_TEXT.Append("GBP  " + _gbpSI[index].ToString());
                Display_TEXT.AppendLine();
            }

            if (chfEnable)
            {
                Bars[] pairs = 
                {
                    AUDCHF,
                    NZDCHF,
                    CHFJPY,
                    GBPCHF,
                    EURCHF,
                    USDCHF,
                    CADCHF
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "CHF"), 0);
                _chfSI[index] = currencyIndex;
                Display_TEXT.Append("CHF  " + _chfSI[index].ToString());
                Display_TEXT.AppendLine();
            }

            if (eurEnable)
            {
                Bars[] pairs = 
                {
                    EURAUD,
                    EURNZD,
                    EURJPY,
                    EURGBP,
                    EURCHF,
                    EURCAD,
                    EURUSD
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "EUR"), 0);
                _eurSI[index] = currencyIndex;
                Display_TEXT.Append("EUR  " + _eurSI[index].ToString());
                Display_TEXT.AppendLine();
            }

            if (usdEnable)
            {
                Bars[] pairs = 
                {
                    AUDUSD,
                    NZDUSD,
                    USDJPY,
                    GBPUSD,
                    USDCHF,
                    USDCAD,
                    EURUSD
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "USD"), 0);
                _usdSI[index] = currencyIndex;
                Display_TEXT.Append("USD  " + _usdSI[index].ToString());
                Display_TEXT.AppendLine();
            }

            if (cadEnable)
            {
                Bars[] pairs = 
                {
                    AUDCAD,
                    NZDCAD,
                    CADJPY,
                    USDCAD,
                    GBPCAD,
                    CADCHF,
                    EURCAD
                };

                var currencyIndex = Math.Round(CalculateStrength(index, pairs, "CAD"), 0);
                _cadSI[index] = currencyIndex;
                Display_TEXT.Append("CAD  " + _cadSI[index].ToString());
                Display_TEXT.AppendLine();
            }


            if (valuePrint)
                ChartObjects.DrawText("Values", Display_TEXT.ToString(), StaticPosition.BottomRight, valueColor);

            ChartObjects.DrawText("Copyright", "ⒸS.J.Yaghoubi", StaticPosition.BottomLeft, Colors.Gray);

        }

        #endregion


        #region Indicator Functions

        private double CalculateStrength(int index, Bars[] currency, string baseCurrency)
        {

                        /* Strength calculation over specified period with this formula: (ClosePrice - OpenPrice) / (HighPrice - LowPrice) */

double[] pairStrength = 
            {
                0,
                0,
                0,
                0,
                0,
                0,
                0
            };

            // Calculate strength of pairs separately

            for (int i = 0; i < currency.Length; i++)
            {
                // sync data with chart index and return as new index

                int index2 = GetIndexByDate(currency[i], Bars.OpenTimes[index]);

                // calculate the strength

                for (int j = 0; j < Period; j++)
                    pairStrength[i] += (currency[i].ClosePrices[index2 - j] - currency[i].OpenPrices[index2 - j]) / (currency[i].HighPrices[index2 - j] - currency[i].LowPrices[index2 - j]);
            }

            // Calculate overall strength:
            // If the Base currency is our favorite then sum pair-value with the overall, otherwise minus the pair-value from the overall

            double total = 0;

            for (int i = 0; i < currency.Length; i++)
            {
                if (currency[i].ToString().Substring(0, 3) == baseCurrency)
                    total += pairStrength[i];
                else
                    total -= pairStrength[i];
            }

            // Return result

            return total;
        }

        private int GetIndexByDate(Bars series, DateTime time)
        {
            /* This function will use to sync the loaded data with chart time */

            for (int i = series.Count - 1; i >= 0; i--)
            {
                if (time == series.OpenTimes[i])
                    return i;
            }

            return -1;
        }

        #endregion



    }
}
algo3xp3rt's avatar
algo3xp3rt

Joined on 17.12.2021

  • Distribution: Free
  • Language: C#
  • Trading platform: cTrader Automate
  • File name: CSI.algo
  • Rating: 5
  • Installs: 2067
  • Modified: 12/03/2022 17:04

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almaza24map · 2 years ago
 
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