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Maximum likelihood estimators of population parameters from doubly left-censored samples

✍ Scribed by Abou El-Makarim A. Aboueissa; Michael R. Stoline

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
138 KB
Volume
17
Category
Article
ISSN
1180-4009

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✦ Synopsis

Abstract

Left‐censored data often arise in environmental contexts with one or more detection limits, DLs. Estimators of the parameters are derived for left‐censored data having two detection limits: DL~1~ and DL~2~ assuming an underlying normal distribution. Two different approaches for calculating the maximum likelihood estimates (MLE) are given and examined. These methods also apply to lognormally distributed environmental data with two distinct detection limits. The performance of the new estimators is compared utilizing many simulated data sets. Examples are given illustrating the use of these methods utilizing a computer program given in the Appendix. Copyright Β© 2006 John Wiley & Sons, Ltd.

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