Modified Least Trimmed Quantile Regression to Overcome Effects of Leverage Points

Figure 7

SE values for the estimate parameters at each quantile and contamination level for all methods (M1 = QReg, M2 = LTQReg (20%), M3 = LTQReg (30%), M4 = RWLTQReg, M5 = RMD-LTQReg, and M6 = GM6-LTQReg) in the first experiment when n = 200.