pub fn to_renko(candles: &[Candle], box_size: f64) -> Result<Vec<Candle>>Expand description
Transform candles into Renko bricks (wickra-core’s RenkoBars, fixed
box_size on closes), each emitted as a synthetic candle (open/close =
the brick edges, sequential timestamps). Backtest a strategy on price-driven
Renko bars instead of time bars. box_size must be positive.