Multi Time Frame Indicator

[Ironman9973]

Hi try to code something simple. But it does not work. I try to plot a Sma from an time chart on a range chart.

protected override void Initialize()
{
Add (PeriodType.Minute, 5);
Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Line, "Plot0"));
Overlay = true;
}




protected override void OnBarUpdate()
{

Plot0.Set(SMA(BarsArray[1], 20)[0]);
}

But if I lay the indicator on my chart, the indicator plots nothing.

Thank you

[sledge]

Looks like you are trying to plot the plot.

Try BarsArray[0] instead.

Hi try to code something simple. But it does not work. I try to plot a Sma from an time chart on a range chart.

protected override void Initialize()
{
Add (PeriodType.Minute, 5);
Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Line, "Plot0"));
Overlay = true;
}




protected override void OnBarUpdate()
{

Plot0.Set(SMA(BarsArray[1], 20)[0]);
}

But if I lay the indicator on my chart, the indicator plots nothing.

Thank you

[Ironman9973]

If I use BarsArray[0] it takes the data from the range chart. But I want to plot the data from the time chart on the range chart.

[sledge]

If I use BarsArray[0] it takes the data from the range chart. But I want to plot the data from the time chart on the range chart.

Hi, I totally missed your Add (PeriodType.Minute, 5) this morning. My fault.

Anyways, I just did a full test and I think I see your issue.


In Control Center, goto Tools->Output Window.

Try to use your strategy again.

You should see errors like:

Error on calling 'OnBarUpdate' method for indicator 'plottest1' on bar 0: You are accessing an index with a value that is invalid since its out of range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart.


What you need is a CurrentBar check.

        protected override void Initialize()
        {
            Add ( PeriodType.Minute,5);
            Add(new Plot(Color.FromKnownColor(KnownColor.Orange), PlotStyle.Line, "Plot0"));
            Add(new Plot(Color.FromKnownColor(KnownColor.Green), PlotStyle.Line, "Plot1"));
            Overlay                = true;
        }

        /// <summary>
        /// Called on each bar update event (incoming tick)
        /// </summary>
        protected override void OnBarUpdate()
        {
            // Use this method for calculating your indicator values. Assign a value to each
            // plot below by replacing 'Close[0]' with your own formula.
            [B]if (CurrentBar<50) return;[/B]
            
            Plot0.Set(Close[0]);
            Plot1.Set(SMA(BarsArray[1],20)[0]);
        }

        #region Properties
        [Browsable(false)]    // this line prevents the data series from being displayed in the indicator properties dialog, do not remove
        [XmlIgnore()]        // this line ensures that the indicator can be saved/recovered as part of a chart template, do not remove
        public DataSeries Plot0
        {
            get { return Values[0]; }
        }

        [Browsable(false)]    // this line prevents the data series from being displayed in the indicator properties dialog, do not remove
        [XmlIgnore()]        // this line ensures that the indicator can be saved/recovered as part of a chart template, do not remove
        public DataSeries Plot1
        {
            get { return Values[1]; }
        }

        [Description("")]
        [GridCategory("Parameters")]
        public int MyInput0
        {
            get { return myInput0; }
            set { myInput0 = Math.Max(1, value); }
        }
        #endregion
    }

[Ironman9973]

Thank you very much, it works. But if have no idea why I need a CurrentBar check.

[sledge]

Thank you very much, it works. But if have no idea why I need a CurrentBar check.

It is simply because you don't have enough 5 minute bars to make a SMA of period 20.

You may have 500 range bars, but only 2 5 minute bars and you won't be able to make an SMA of period 20. (and then the check below won't work either, you'll need a number over 500).

There is some info in the help section of NT under understanding multitimeframe series.

You might be able to better see/understand if you build a chart with a RANGE series and add a 5 minute series to it.