Fibo Bollinger calc

[Burga1]

Hi,

I'm trying to code a Fibonacci Bollinger indicator. I'm getting an "index outside the bounds of the array" error in the log. I do not know what this means exactly, so I'm at a bit of a loss to correct it...the code is a modification of the Bollinger Bands code:

privatedouble numStdDev = 2;
privateint period = 14;
double factor1 = 1.618;
protectedoverridevoid Initialize()
{
Add(new Plot(Color.Cyan, "Upper band"));

Add(new Plot(Color.Green, "Middle band"));
Add(new Plot(Color.Orange, "Lower band"));
}
protectedoverridevoid OnBarUpdate()
{
Upper.Set(SMA(Close, Period)[0] + NumStdDev * (factor1 * ATR(Period)[0]));
Middle.Set(SMA(Close, Period)[0]);
Lower.Set(SMA(Close, Period)[0] - NumStdDev * (factor1 * ATR(Period)[0]));
}

Any clues on the cause and/or meaning of the error?

[NinjaTrader_JoshP]

Please this tip: http://www.ninjatrader-support.com/v...ead.php?t=3170

[Burga1]

Thanks for the reply but that's not it. I have this as the first line in OnBarUpdate:

if(CurrentBar < 30){return;}

I've jacked it up all the way to a ridiculous number (120)...I still get the same error.

[NinjaTrader_JoshP]

You will need to debug then. Comment out sections of the code till it compiles and then slowly uncomment them till you pinpoint the source of the error.

[Burga1]

I've done so already. The Output Window simply prints the first bar and then nothing else. For some reason if I comment out all lines except the calculation for the "middle" plot, the error STILL happens, although I thought that it shouldn't...it's simply a SMA calculation...there's nothing else at that point to comment out...

[Burga1]

I've did some additional work with it and seem to have it working. However the indicator is plotting in a window "below" the price chart, thus making it difficult to work with...how do I have the plots show on the price chart itself (in the same manner as a Bollinger Band indicator does...)?

[NinjaTrader_JoshP]

When you load the indicator set it to Panel 1. You can also programmatically set this by using Overlay = true in the Initialize() method. If you have draw objects that you want on the price panel you will need to set DrawOnPricePanel = true in the Initialize() method too.

Please take note that you will need the indicator to share the same y-axis scale as the price panel or else things will become very scrunched. This is a limitation in overlaying indicators that will be addressed in NT7.

[Burga1]

Thank you for your replies.

[trader1512]

any luck with Fibonacci Bollinger Bands

have you ever succeeded in programming this and is it available?

[rretch]

I would also be interested in this indicator.

Do you plan to release it or anything?

thanks,
robert