Signal (fynance.signal)

The bridge from predictions to positions: mappers and a model+mapper pipeline.

sign(pred)	Long/short by the sign of the prediction (+1 / -1 / 0).
threshold(pred[, long, short])	Position with a flat dead-band.
rank(pred, top, bottom)	Cross-sectional long/short by rank.
vol_target_position(signal, prices[, ...])	Scale a directional signal by causal volatility-targeting leverage.
SignalPipeline(model, mapper[, mapper_kwargs])	A SignalModel plus a position mapper.