This indicator is intended to evaluate the quality of the bullish candles (close > open).
It will calculate the average size of the bullish candles from the last 200 periods. I'm assuming that a bullish candle with a superior wick or shadow equal or less than 25% of the total size of the bar is a good disruption candle. You can adjust at your own taste.
Candles...
Measure of the total candle length, including the upper and lower wicks. Works best as a histogram in my opinion. Used as a quick reference for the high minus the low of each candle.