cW22Trader
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Username:cW22Trader
Name:cW22Trader
Member since: 16 Mar 2021

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Last Algorithm Comments

@Pseudo Point and Figure:  19 Sep 2021, 19:04


Improved version with some bug-fixes and calculaton method more like point & figure or Renk.

@Time Segmented Volume:  06 Aug 2021, 01:08


Removed unused reference to "AdaptiveLaguerreMA".

Last Forum Posts

@Multi-timeframe robots/indicators:  28 Jan 2022, 22:53


Marin0ss said:

Hi Ctrader team,

Is it possible to refer to Open/Close/High/Low values & Indicator results from a different Range Bar chart?

Like running Ra100 Chart while getting values from Ra500 for example, just like referring values in a higher TF?

If not yet possible; any plans to implement this already?

Thanks in advance!

I think this is possible at least with Renko. This should be the same with Range bars.

But be carefull when using OHLC data of "higher" or larger TF. On historical data of e.g. on a chart it will use future data of the higher TF. E.g. a Ra100 bar just closed and your indicator algo gets triggered and you also get the data from the Ra500 bar using this API "Ra500bar.OpenTimes.GetIndexByTime(Ra100bar.OpenTimes[index])". The Ra500 bar may not be closed yet but since on historical data you only have access to completed OHLC data, you would use future data of that Ra500 bar which produces unrealistic results.

@cTrader Team: please correct me if I'm wrong...

Kind regards

@Multi-timeframe robots/indicators:  03 Oct 2021, 18:57


Hi Panagiotis,

PanagiotisCharalampous said:

Hi cW22Trader,

How could the indicator already know the high and low value (sma period = 1) at 9 pm of the previous day (see 1. screen shot)?

Because you are retrieving data for historical bars that have already been closed. All the bars you retrieve are closed bars. When you get data using GetIndexByTime(), you don't get the bar as it was at the specific point of time, but the completed bar where the requested time falls in.

If you are looking to find the bar state at the specific point of time, then this functionality is not offered by the API. You will need to develop something yourself.

Best Regards,

Panagiotis 

Join us on Telegram and Facebook  

I understand that the API does not offer intermediat data of a past bar of a different time frame. Unfortunately, this makes it impossible to run in backtest since the data form a different time frame is futur data.

E.g. on a 1h chart with an indicator using data form the 4h time frame and simply displays the OHLC data as static text on chart, every time a new 4h bar starts it already shows the future high and low of the next 4h in visual backtesting. I would expect that the last bar of the 4h time frame "builds up" during the next 4h in visual backtesting and only stores the open, high, low and close of that bar once it is complete just like it does in real-time mode.

Kind regards

@Multi-timeframe robots/indicators:  08 Sep 2021, 23:28


Hi,

Why is the historical data wrong when using a different time frame and retrieving the index by GetIndexByTime? How could the indicator already know the high and low value (sma period = 1) at 9 pm of the previous day (see 1. screen shot)? If I a reduce dataIndex by 1 it is correct but is this how you should use GetIndexByTime? If you leave the indicator on the chart for a while, the values calculated while the chart was open behave different then the ones calculated from historical data during initializaiton of the indicator (see 2. screen shot). The last 3 bars all have different low values (red line) but all others (calculated during init) alway have 2 same values (this was done on 1m chart with tf parameter set to 2m).

Kind regards

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

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class TimeFrameMA : Indicator
    {
        [Parameter("Time Frame", DefaultValue = "Daily")]
        public TimeFrame Timeframe { get; set; }

        [Parameter("MA Periods", DefaultValue = 3, MinValue = 1)]
        public int Periods { get; set; }

        [Parameter("MA Type", DefaultValue = MovingAverageType.Exponential)]
        public MovingAverageType MAType { get; set; }

        [Output("High", Thickness = 3)]
        public IndicatorDataSeries High { get; set; }

        [Output("Low", Thickness = 3, LineColor = "Red")]
        public IndicatorDataSeries Low { get; set; }

        private Bars data;
        private MovingAverage maH, maL;


        protected override void Initialize()
        {
            data = MarketData.GetBars(Timeframe);
            maH = Indicators.MovingAverage(data.HighPrices, Periods, MAType);
            maL = Indicators.MovingAverage(data.LowPrices, Periods, MAType);
        }

        public override void Calculate(int index)
        {
            var indexData = data.OpenTimes.GetIndexByTime(Bars.OpenTimes[index]);
            if (indexData > 0)
            {
                High[index] = maH.Result[indexData];
                Low[index] = maL.Result[indexData];
            }
        }
    }
}

@How to save Optimization results:  04 Aug 2021, 12:32


Use this every time PositionsOnClosed is called:

private double peak;
private List<double> drawdown = new List<double>();

private double CalcMaxDrawDown()
{
    peak = Math.Max(peak, Account.Balance);

    drawdown.Add((peak - Account.Balance) / peak * 100);
    drawdown.Sort();

    var maxDrawdown = drawdown[drawdown.Count - 1];

    return maxDrawdown;
}

@Multi Time Frame OnBar Events:  03 Aug 2021, 00:27


Thanks for the answer.

Unfortunately, this example does not use any indicators it is code for an indicator. But how does it work in a bot using an indicator (e.g. an EMA)?

@Multi Time Frame OnBar Events:  29 Jul 2021, 22:17


Could you also provide a simple example with an indicator used for multiple symbols at the same time?

Is it still initialized in OnStart? Do I need one per symbol or is this handled automatically?

Kind regards

@Save and load optimization settings/parameters/runs:  16 Mar 2021, 18:24


Have the possibility to save and load optimization settings similar to the cBot parameters and to load default settings from the current active sttings for parameters which are not selected for optimization.

If possible it would also be nice to save the whole optimization runs somehow.

Notification Publishing copyrighted material is strictly prohibited. If you believe there is copyrighted material in this section you may use the Copyright Infringement Notification form to submit a claim.
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