[blackcat] L1 OBV-MFI Combo

Level 1

Background

As requested, this is a combo of OBV and MFI indicators

Function
On-balance volume (OBV) is a technical trading momentum indicator that uses volume flow to predict changes in stock price. Joseph Granville first developed the OBV metric in the 1963 book Granville's New Key to Stock Market Profits.
The Money Flow Index (MFI) is a technical oscillator that uses price and volume data for identifying overbought or oversold signals in an asset. It can also be used to spot divergences which warn of a trend change in price. The oscillator moves between 0 and 100.
The combo of them is still an oscillator.

Remarks

Feedbacks are appreciated.