Help with an indicator please...

[dendy]

I am attempting to develop an indicator based on the ATR indicator in Ninja Trader that I can use for my stop loss.

I think I almost have it done except for that I believe the values must be rounded to the nearest whole number to be used in a strategy to set the tick value of the stop loss. I don't know how to round although I've searched and found something for (Math.Round or Truncate on the web).

Can someone help with this please? I have attached the indicator which seems to work at least to the point of plotting the values on a chart.

Thank.

[NinjaTrader_Ray]

You can use the following:

Instrument.MasterInstrument.Round2TickSize(double value);

[dendy]

Thanks Ray,

This does round but I need the number rounded to a whole number. Not a decimal number. So if there are 4 ticks to a point, the function you provided rounds to the nearest 1/4 point. I need my numbers rounded to the nearest whole number.

Thanks.....

[NinjaTrader_Ray]

I see.

Math.Ceiling or Math.Floor might work? Google MSDN Math Class for documentation on the Math class and all of its methods.

[dendy]

NinjaTrader_Ray,

I've used this function and still I cannot get the double number to round to and integer whole number. I don't know what I'm doing wrong.

Does NT have a list of all the functions possible to use like this " Instrument.MasterInstrument.Round2TickSize(double value);" so that I can investigate any more of these options.

Thanks...

[NinjaTrader_Ray]

Right, this function will not do what you want. You have to use functions that exist in the Math class which is part of C#/.NET and NOT NinjaScript.

Here is the link to all functions of the Math Class.

http://msdn2.microsoft.com/en-us/library/system.math_members(VS.71).aspx

[dendy]

Thanks.

I think I have a solution using the Math.Round function.

[KBJ]

That's an interesting idea of using the ATR to set a stop-loss and it sounds like it might be very workable.

Since the ATR is defined as the maximum of these three values: abs(Low[0] - Close[1])
abs(High[0] - Close[1])
(High[0] - Low[0])
averaged over the last N bars, this would help find stops that automatically adjust based on recent volatility... just what I was looking for. (Thanks!)

And I guess it would handle shorts as well as longs, unless you’re trading counter to the trend, in which case you’d probably want to have your stops smaller. Perhaps for counter-trend trades stops would better if calculated by averaging only 2 out of the above three calculations, leaving out the one that is with the trend... just a guess, I'm not sure it would work, but might be worth looking at.

KBJ

[KBJ]

For more info, refer to this thread also on the ATR topic:

http://www.ninjatrader-support.com/vb/showthread.php?t=3660

KBJ

[dendy]

Thanks KBJ,

I'll look into this...

dendy.