Function simplicity

labelling.go:191–205

simplicity returns the simplicity score for how will the curent q, lMin, lMax, lStep and skip match the given nice numbers, Q.

(q float64, Q []float64, skip int, lMin, lMax, lStep float64)

// simplicity returns the simplicity score for how will the curent q, lMin, lMax,
// lStep and skip match the given nice numbers, Q.
func simplicity(q float64, Q []float64, skip int, lMin, lMax, lStep float64) float64 {
	const eps = dlamchP * 100

	for i, v := range Q {
		if v == q {
			m := math.Mod(lMin, lStep)
			v = 0
			if (m < eps || lStep-m < eps) && lMin <= 0 && 0 <= lMax {
				v = 1
			}
			return 1 - float64(i)/(float64(len(Q))-1) - float64(skip) + v
		}
	}
	panic("labelling: invalid q for Q")
}

// maxSimplicity returns the maximum simplicity for q, Q and skip.
func maxSimplicity(q float64, Q []float64, skip int) float64 {