Fig. 2From: A nonparametric approach for quantile regressiona SMSE(QD(τ)) is the red solid line, SMSE(QLP(τ)) is the green dash-dot line, SMSE(QR(τ|x)) is the blue dash line. b SEFF(QD(τ|x)) is the red solid line, SEFF(QLP(τ|x)) is the green dash-dot line, SEFF(QR(τ|x))≡1 is blue dash lineBack to article page