2-candle pattern based on your 1-candle condition

Below is your original 1-candle logic, extended to detect a pattern where both the current candle and the previous candle satisfy the same condition.

Logic explanation:

• c1: the candle’s total range is smaller than or equal to 6.1 * pipsize.
• c2: the wick on the closing side is very small (≤ 0.8 * pipsize).
• If the candle is bullish (close > open): upper wick = high – close.
• If the candle is bearish (close < open): lower wick = close – low.
• Cond: candle satisfies both conditions c1 AND c2.
• 2-candle pattern: current candle Cond AND previous candle Cond[1] are both true.

ProBuilder code for the 2-candle pattern:

// --- 1-candle condition ---
Irange = high - low

c1 = Irange <= 6.1 * pipsize

IF close > open THEN
 c2 = (high - close) <= 0.8 * pipsize
ELSIF close < open THEN
 c2 = (close - low) <= 0.8 * pipsize
ELSE
 // Doji case: you can decide what to do; here we set it to FALSE
 c2 = 0
ENDIF

Cond = c1 AND c2

// --- 2-candle pattern: current candle AND previous candle match the same condition ---
TwoCandlePattern = Cond AND Cond[1]

RETURN TwoCandlePattern

Below is another version, first pattern detected draw a ball, second pattern found in a row, draw a signal arrow.

c1 = (range <= 6.1 * pipsize)

green = c1 and close>open and  (high - close) <= 0.8 * PipSize
red = c1 and close<open and (close - low) <= 0.8 * PipSize

if green then
   if green[1] then
      drawarrowup(barindex,low) coloured("green")
   else
      drawpoint(barindex,low,5) coloured("green")
   endif
endif

if red then
   if red[1] then
      drawarrowdown(barindex,high) coloured("red")
   else
      drawpoint(barindex,high,5) coloured("red")
   endif
endif

return

2-candles-patterns.png

I think the issue is that your original code only checks the wick on the closing side of each candle, but not the opening side. That’s why you’re still seeing signals with larger wicks.

What you actually want is to check both wicks (upper and lower) on each candle, so you only detect full-body candles (marubozu-like) with minimal wicks on both sides.

// --- Marubozu-like condition: small range + both wicks minimal ---
c1 = (range <= 6.1 * pipsize)
upperWick = (high - max(open, close)) <= 0.8 * pipsize
lowerWick = (min(open, close) - low) <= 0.8 * pipsize
Cond = c1 AND upperWick AND lowerWick
// --- 2-candle pattern ---
TwoCandle = Cond AND Cond[1]

RETURN TwoCandle