BB:=REF(SMA(VAR 1， 13， 1)；

C & gtBB；

This is the stock selection formula with the closing price standing on the blue line.

I said, my friend, this crocodile trading system is not for you to play like this, and you can't buy the blue line. If you buy like this, you are crazy.

This is the key of the trading system described by Bill William in this paper, which also needs to cooperate with AO.

Comprehensive analysis and application of AC impact index and filtration index

If you are interested in indicators, look for this book and use it after you have learned it.