Get bar number of prior swing lows/highs

[PN720]

Hey guys -

A simple question.. how can I get the bar number of prior swing lows/highs (i.e. most current and the one before that one)?

Thanks!

[NinjaTrader_PaulH]

Hello PN720,

Thanks for your post.

The help guide for the swing indicator shows a method overload of:
Swing(int strength).SwingHighBar(int barsAgo, int instance, int lookBackPeriod)

In the case of the parameter "instance," you would set 1 for the latest occurrence and then 2 for the one before that, etc.

Swing().SwingHighBar() returns the "bars ago" value, so to get the bar number you would use something like:

int myBarNumber = CurrentBar[0] - (Swing(5).SwingHighBar(0, 1, 10); // 10 bar lookback

Also, when working with Swing you have to account for the possibility that there was no prior swing in the lookback period in which case Swing returns a -1;

Keep in mind as well that a swing is not confirmed until the strength parameter for bars is met, so if using 5, the swing high at best would have been 5 bars ago. As you develop your script you will want to use print statements to help you see what swing is working with.

References:

https://ninjatrader.com/support/helpGuides/nt8/en-us/?swing.htm

https://ninjatrader.com/support/helpGuides/nt8/en-us/?debugging_your_ninjascript_cod.htm