RSI with an Opinion (UO)

This RSI has a very clear idea about when to buy and sell. It plots buy and sell signals. It is an expert system. Yes, of course, it can make some errors. You should have used stop-loss

版本注释:

Added purple arrows. Purple arrows are not a final decision. They are how it is likely to decide in the next step

版本注释:

Refactored the decision into a single pine function so that it can be easily used in other scripts