AccumulationDistribution

Incremental, causal technical analysis documentation

Summary

AccumulationDistribution is RTTA's streaming implementation of: Volume-price accumulation/distribution line.

Update API

result = rtta.AccumulationDistribution().update(close, high, low, volume)

The update(...) call consumes one observation using close, high, low, volume. advance(...) uses the same inputs when the caller wants to update state without materializing a Python return value.

Theory Of Operation

AccumulationDistribution combines price, volume, and/or quote information into a streaming microstructure or participation measure. The update path advances only from the latest tick and prior state.

Recurrence

Let \(z_t = (close_t, high_t, low_t, volume_t)\) denote the observation consumed by one update(...) call and let \(\theta\) denote constructor parameters such as window lengths, thresholds, and smoothing constants.

\[PV_t = PV_{t-1}+price_t\,volume_t\]
\[V_t = V_{t-1}+volume_t, \qquad y_t = G(PV_t,V_t,z_t)\]

The return value is the current scalar indicator value.

Implementation Notes

The recurrence is implemented in src/rtta/indicator.cpp in class AccumulationDistribution.

Reference