highWatermark float64
	smoothed      float64
}

func (stats *seatDemandStats) update(obs fq.IntegratorResults) {
	stats.highWatermark = obs.Max
	if obs.Duration <= 0 {
		return
	}
	if math.IsNaN(obs.Deviation) {
		obs.Deviation = 0
	}
	stats.avg = obs.Average
	stats.stdDev = obs.Deviation
	envelope := obs.Average + obs.Deviation