Z-Score Indicator

Description:

The ZScoreIndicator is designed to calculate the Z-score of a financial instrument's closing prices over a specified rolling window period. The Z-score is a statistical measurement that describes a value's relationship to the mean of a group of values, measured in terms of standard deviations. This indicator helps traders identify overbought or oversold conditions based on standard deviation thresholds.

Features:

1. Rolling Window: Allows setting the period over which the rolling mean and standard deviation are calculated.
2. Threshold Parameters:
   • Buy Z-Score Threshold: Sets the Z-score level below which a buy signal is generated.
   • Sell Z-Score Threshold: Sets the Z-score level above which a sell signal is generated.
   • Close Z-Score Threshold: Sets the Z-score level at which positions should be closed.
   • Signal Cool Down Period: Defines a period to wait before issuing a new signal after a buy or sell signal. 

This indicator assists traders in identifying potential trading opportunities by highlighting overbought and oversold conditions using statistical measures.

Above are the example of XAUUSD with H1 timeframe. 
The threshold is 2.8 and -2.8 level.