Histogram of J−K for stars classified as dwarfs (top, black solid line) and giants (bottom, red solid line) for different runs. The distribution of giants (stars with log g< 3.5) misclassified as dwarfs is indicated in the top plots with a red dashed line. The distribution of dwarfs (stars with log g ≥ 3.5) misclassified as giants is indicated in the bottom plots with a black dashed line.