For everyone wondering what IPDA is:
IPDA = Interbank Price Delivery Algorithm
There was a time when markets were controlled by real people (Market makers)
This changed in the late 1990's when IPDA was created.
IPDA moves price to levels where liquidity rests

Use the IPDA for bias. It allows you to understand where the next DOL will be.
IPDA DATA RANGES = 20, 40, 60
IPDA data ranges are used to measure highs and lows.
Use the ranges to determine if price is in a premium or discount market.
Premium = Bearish
Discount = Bullish

How to use it:
Go back 20 candles on the daily chart and find the 20 day high & low
keep in mind that the weekends count as days
- Every 20 days there will be a turtle soup

Example:
If price moves below a 20 day low (20 day IPDA data range) that is enough for you to switch to a bullish bias or at least to no longer be bearish.