Bar size calculation

[several]

I use a simple line of code to calculate the size of a bar in ticks

SignalBarSize = ((High[0] - Low[0]) / TickSize);

In the ES and NQ this works fine. I get expected results, 4, 6, 9 etc etc..

However in the RTY. I get unexpected results like:

27.0000000000027
34.0000000000009
49,9999999999991

Why is this?

[NinjaTrader_ChelseaB]

Hello several,

This may be due to floating point arithmetic.

Below is a link to the help guide which discusses.

https://ninjatrader.com/support/helpGuides/nt8/floating-point_arithmetic.htm

You can use Instrument.MasterInstrument.RoundToTickSize() to round to a tick size if you need to.

https://ninjatrader.com/support/helpGuides/nt8/roundtoticksize.htm

[several]

Thanks.

Using Instrument.MasterInstrument.RoundToTickSize seems just to return the point size, not the ticksize on the RTY

In the RTY, each tick is 0.10points. So 1.5 points is 15 ticks.

Instrument.MasterInstrument.RoundToTickSize(High[0] - Low[0]) gives a result of 1.5

[NinjaTrader_ChelseaB]

Hello several,

It would depend on what the High[0] and Low[0] are to produce a distance of 1.5 points.

Were you meaning to divide this by .1?

[several]

I did not divide it.

[NinjaTrader_ChelseaB]

Hello several,

If not divided by .1, this would be the difference in points, not ticks.

It would depend on what the High[0] and Low[0] are to produce a distance of 1.5 points.