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BOOTSTRAP SAMPLING IS WITH REPLACEMENT: A COMMENT ON AYLLÓN ET AL . (2011)
Author(s) -
Williams J. G.
Publication year - 2013
Publication title -
river research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.679
H-Index - 94
eISSN - 1535-1467
pISSN - 1535-1459
DOI - 10.1002/rra.1605
Subject(s) - transect , sampling (signal processing) , statistics , confidence interval , usable , sample (material) , set (abstract data type) , computer science , index (typography) , environmental science , econometrics , mathematics , ecology , biology , chemistry , filter (signal processing) , chromatography , world wide web , computer vision , programming language
The bootstrap can be used to estimate confidence intervals for complex statistics such as weighted usable area, the habitat index calculated by the Physical Habitat Simulation System (PHABSIM) and related models. Use of the bootstrap entails sampling with replacement from the original sample, such as a set of PHABSIM transects. Because the method has been improperly applied to PHABSIM transects in several instances, I explain in detail why bootstrap sampling is with replacement. Copyright © 2011 John Wiley & Sons, Ltd.