Augmented Dickey–Fuller test of H0: unit root. Δy_t = α + β t + γ y_{t-1} + Σ φ_i Δy_{t-i} + e
Optional
Augmented Dickey–Fuller test of H0: unit root. Δy_t = α + β t + γ y_{t-1} + Σ φ_i Δy_{t-i} + e