I have a question relating to the reverse engineering of a momentum oscillator. I hope you can help me with that. Thank you in advance.
Goal
I want to reverse engineer Constance Brown’s Composite Index. That is, I don’t want to know the value of the Composite Index given the current price of the last bar, but I want to know where the price of the current bar would need to go to reach a specific value in the Composite Index (e.g.: Where would the price on the current (i.e., ongoing) bar would need to go so that the Composite Index would reach >= 100 for the current bar).
Background Information
Constance Brown’s Composite Index is calculated in the following way:
Code for Composite Index
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// Step 1: Create a 9-period momentum indicator of a 14-period RSI.
RSIMO9=Momentum[9](RSI[14](close))
// Step 2: Create a 3-priod simple moving average of a 3-period RSI.
RSI3=Average[3](RSI[3](close))
// Step 3: Add the value of the indicators created in Step 1 and 2 together to create the Composite Index.
Composite=RSIMO9+RSI3
Sketch of a Solution
I have already found the code for reverse engineering the RSI in the indicator library (Link). I just cannot come up with a solution for applying a similar process for the Composite Index.
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