simple indicator is not plotting correctly

[koalboy]

Hi guys,

I coded a really simple indicator plotting Open / High / Low / Close as a line overlaying the price chart...

• I'm working on a longterm chart SP 500 ES-Contract 1970 - 2011 showing yearly candlesticks.
• When I try adding my indicator the data of the indicaotr (= OHLC of each bar) is shown correctly in the databox but is only drawn on the chart beginning with 1990 = 20 bars after start
• On a monthly or daily chart the same problem occurs -> for the first 20 bars no Line is drawn but shown in databox correctly, afterwards everything alright

As the calculation logic doesn't require any lookback-period I don't understand why it doesn't work. Thinking of a bug I already updated to Version 7.0.1000.6 but didn't help. Despereately I also tried changing values Infinite/256Barslookback and also calculate bar on close true/false. Nothing helps...

here is the code how the values are assigned to the 4 Plots

protected override void Initialize()
{
Add(new Plot(Color.FromKnownColor(KnownColor.SeaGreen), PlotStyle.Line, "OpenLine"));
Add(new Plot(Color.FromKnownColor(KnownColor.Orchid), PlotStyle.Line, "HighLine"));
Add(new Plot(Color.FromKnownColor(KnownColor.DodgerBlue), PlotStyle.Line, "LowLine"));
Add(new Plot(Color.FromKnownColor(KnownColor.Firebrick), PlotStyle.Line, "CloseLine"));
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.

OpenLine.Set(Open[0]);
HighLine.Set(High[0]);
LowLine.Set(Low[0]);
CloseLine.Set(Close[0]);
}

[NinjaTrader_Austin]

Koalboy, please try adding this to your Initialize() section:

Initialize()
{
BarsRequired = 1;
}

[koalboy]

hi austin,

that solved the problem but:

I added the built-in RSI indicator with input parameters 3/3 and the same problem occured -> again 20 bars lag if it should be calculated on the 4th bar already (due to input parameter).

As I don't want to change the coding logic of the built-in indicators can you tell me if this 20bars lag is intended and why?

thx

[NinjaTrader_Austin]

koalboy, the behavior for all indicators (unless otherwise told so) is to wait for 20 bars before running calculations, to "smooth" out any possible error stemming from a lack of bars.