Figure 2From: Clustering with position-specific constraints on variance: Applying redescending M-estimators to label-free LC-MS data analysisRedescending M-estimator Characteristics. (a) weight function; (b) ψ-function; (c) ρ-function of the redescending M-estimator in Eq. (4), for T = 5, 1, 0.1. The cutoff is at c = 3.Back to article page