Hi all,

What exactly does CDLEngulfing() return?

I've been playing with this and can't make sense of the returns. The manual says:
"The CDL functions return a value of -100% for bearish patterns, +100% for bullish patterns, and 0 for no pattern match. They use the current asset price series."

I expected then that bullish engulfing candles would return either 1 or 100, & bearish engulfing would return -1 or -100 but that does not appear to be the case.

Code:
function run()
{
	BarPeriod = 30;
	
	vars cl	= series(priceClose());	
	
	vars ema	= series(EMA(cl,67));
	vars sma	= series(SMA(cl,13));

	
	if ((sma[0]>ema[0]) and (CDLEngulfing() == 100))	reverseLong(1);
	
	if ((sma[0]<ema[0]) and (CDLEngulfing() == -100))	reverseShort(1);
	
	plot("EMA",ema[0],0,GREEN);
	plot("SMA",sma[0],0,ORANGE);
	plot("CDL",CDLEngulfing(),NEW,BLUE);	
	
}


How do the cdl functions work?

should they return a % similarity to the patterns or simply a 100%, -100%, 0?