Ensemble-averaged structure functions associated with outward (﹩{\hat{Y}}_{\perp }^{{\rm{out}}}﹩; black dashed curves with circles) and inward (﹩{\hat{Y}}_{\perp }^{{\rm{in}}}﹩; blue dashed curves with squares) Alfvénic fluctuations as functions of the perpendicular lag, ℓ_⊥. The red solid curves show the average quantity ﹩\hat{Y}=({\hat{Y}}_{\perp }^{{\rm{out}}}+{\hat{Y}}_{\perp }^{{\rm{in}}})/2﹩. The top, middle, and bottom panels correspond to nonswitchback intervals, switchback intervals, and the combined (mixed) sample, respectively. Gray dashed lines indicate the linear fit scaling within the inertial range.