To use this script you need to understand what Pearson's R is; which is how correlated a set of data is to a line within a given deviation (+ or -).
If the Pearson's R is negative (-) then the trend is going upwards. If the value is positive (+) then the trend is going downwards.
There is a lot of debate as to what the ideal negative and positive values are for the Pearson's R, so you can change these in the settings. What the script will do is attempt to automatically find (and draw the ) based on a given minimum period and a maximum period (both set in the settings) that match the ideal Pearson's R settings selected.
Ideally the data is MOST correlated the closest it is to -1 or 1. This means the pattern is very reliable.
This script was designed and works very well with the bar replay mode. You may need a more professional version of TradingView to use this correctly. This mode allows you to see the script in action as it mutates and changes according to the new data being introduced.
I've pre-set the Pearson's R (+) and (-) ranges to what I think is ideal.