Some methods for statistical analysis of multimodal distributions and their application to grain-size data |
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| Authors: | Malcolm W Clark |
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| Institution: | (1) The London School of Economics and Political Science, WC2A 2AE London, United Kingdom |
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| Abstract: | Some of the methods used in the resolution of mixed normal distributions are discussed under three headings: analytical, graphical, and numerical methods. Attention is given to their applicability in the analysis of grain-size data as derived from sieving. Comparisons are made by applying several methods to published data. It is concluded that the numerical methods offer most scope, especially the method of nonlinear least squares. Some analyses of beach sediments, using this method, are presented. The adoption of a convention for the number of individuals in the sample increases ease of interpretation. |
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| Keywords: | decomposition statistics superpositions sedimentology |
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