Indicator Code Library
Verified, commented, cross-platform implementations of the indicators behind the Owl Group Trading methodology. Each is checked against our canonical implementation and linked to its concept.
RL10 - Regression Line
The fitted endpoint of a 10-bar linear regression - a smoothed read of true price that filters candle noise.
The Mean (30-period SMA)
The 30-period simple moving average. In Owl Group Trading this is the Mean (Z0, the BBmean) - the centerline that anchors the River, Flood Plain, and Dragon.
The River, Flood Plain & Red Line
Owl Group Trading's 30-period Bollinger zones around the Mean: River (+/-1 SD), Flood Plain (+/-2 SD), Red Line (+/-3 SD).
The Dragon (spine, belly & northern skin)
A fast +/-0.5 SD band on the 10-period mean of RL10. The spine is the centerline, the belly is the lower (southern) skin, and the northern skin is the upper band.
MACD Seasons
Classifies each bar into one of four market-cycle seasons (Spring/Summer/Fall/Winter) from the sign and slope of the MACD of the regression line (MACDRL).
Frog (range volatility)
Frog is the population standard deviation of the daily High−Low range over the prior ~30 trading days, a measure of how erratic a symbol's daily bar size has been.
R10 / Range Stat
One-tenth of the typical daily range (mean+stddev of high-low over 30 prior bars), the standard minimum-manageable-risk sizing box.
PSAR on RL10
A Wilder Parabolic SAR trailing stop walked over the smoothed RL10 regression line instead of raw price, so the stop reacts to trend rather than to single-bar noise.
VWAP - Volume-Weighted Average Price
The running average price weighted by traded volume, accumulated from the session start.
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