How many times has X occurred since Y - COUNTMATCHSINCESIGNAL

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

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):