Key reversal up Key reversal down

[Uregon]

Hello, there is a basic indicator what is called

Key reversal up
Key reversal down


On wich base are they? are there similar indicators too ?

[NinjaTrader_Emily]

Hello Uregon,

Thank you for writing in.

These are the two indicators you are referring to:

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

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

The source code may be viewed by following these steps:

• Go to Control Center > New > NinjaScript Editor
• Expand the Indicators folder
• Double-click on KeyReversalDown and KeyReversalUp to open up the code for each indicator in separate tabs

I am not sure I fully understand your questions. If reviewing the help guide pages and source code do not answer your question about which base they are on, please provide more information so I may better assist. Additionally, what types of similarities are you looking for in other indicators?

I look forward to your reply.

[Uregon]

NinjaTrader_Emily Thank you. I´d like to know whats the mathematic behind this. When does this indicator trigger ? what are the needed parameters for trigger ?

[NinjaTrader_ChelseaB]

Hello Uregon,

These indicators are open source and you are welcome to view the code in the NinjaScript Editor.

On line 57 of KeyReversalDown you will see:

Value[0] = High[0] > max[1] && Close[0] < Close[1] ? 1: 0;

If the bar high is greater than the max high of the period starting with the previous bar and the close of the current bar is less than the previous close plot a 1 otherwise plot a 0.

On line 57 of KeyReversalUp you will see:

Value[0] = Low[0] < min[1] && Close[0] > Close[1] ? 1: 0;

If the bar low is low than the min low of the period starting with the previous bar and the close of the current bar is greater than the previous close plot a 1 otherwise plot a 0.