The COUNTMATCHSINCESIGNAL() scripting function requires two true/false Boolean scripts, and counts the number of times X occurred since Y.
This example counts how many times RSI(14) has crossed above 70 since it last crossed below 30:
//Create 2 Boolean conditions V1 = RSI(BARS=14) CrossesAbove 70; V2 = RSI(BARS=14) CrossesBelow 30; //Count the number of times V1 occurred since V2 COUNTMATCHSINCESIGNAL(V1,V2)
In a watchlist and a Show View the script would look as follows, with CME’s RSI(14) having crossed 70 on 14 occasions (green arrows) since it last crossed below 30 (red arrow):