Nondetects and data analysis : statistics for censored environmental data

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Discriminant diagrams for iron oxide trace element fingerprinting of mineral deposit types (2011, methodology): “Data analysis procedures for censored datasets are divided into three classes (Helsel 2005): (1) simple substitution methods, (2) parametric methods, and (3) nonparametric methods.”
The limitations due to exposure detection limits for regression models. (2006, methodology): “Various approaches to management of data measured with a lower limit including imputations derived from the limit of detection itself, such as dl/2 or dl/O2, have been used in laboratory and data analysis settings (4, 6, 12).”
The Cross-Entropy Method: A Unified Approach to Combinatorial Optimization, Monte-Carlo Simulation, and Machine Learning (2006, background): “The recent book by Helsel (2005), reported for Technometrics by Gatliffe (2006), discusses statistical methods for dealing with censored environmental data. The book by Watanabe and Yamaguchi deals with the problem of incomplete data in a more general setup. The first chapter of the book gives a gen”