Initial estimate 4 Iterative methods 4 Robust regressions 4 Statistics 4 Brakdown point 2 Efficiency 2 Efficient estimator 2 Estimation 2 Finite sample efficiency 2 Finite samples 2 Gaussians 2 Initial estimates 2 Initial estimators 2 Iterative-weighted 2 Least squares estimators 2 Least-squares estimator 2 Linear modeling 2 M-estimators 2 MM-estimators 2 Maximum likelihood estimation 2 Monte Carlo methods 2 Normal distribution 2 Outliers 2 P-estimates 2 Poisson regression 2 Robust estimators 2 Robust regression 2 S-estimates 2 Sampling 2 Statistical inference 2