This script calculates the Average True Range (ATR) of a financial instrument, which measures market volatility. The ATR value is smoothed using one of four moving average methods chosen by the user: RMA (default), SMA, EMA, or WMA. Here's a breakdown of the functionality:
Inputs:
Length: Determines the period over which the ATR is calculated (default is 14).
Smoothing: Allows the user to select the smoothing method for the ATR from options like RMA, SMA, EMA, or WMA.
Smoothing Logic:
A function ma_function is defined to apply the selected smoothing method (RMA, SMA, EMA, or WMA) to the true range (ta.tr(true)) over the specified length.
Dividing the ATR by 2:
The calculated ATR is divided by 2 before being displayed. This adjustment ensures that if the original ATR value is 10, the script will now output 5.
Plot:
The modified ATR value (original ATR divided by 2) is displayed on a separate panel as a line chart, using a red color (#B71C1C).
Purpose of Update: The division by 2 scales down the ATR values for specific use cases where such an adjustment is desired. This could be for custom strategies or better alignment with other indicators.