Systems of Frequency Curves Generated by Transformations of Logistic Variables.

Abstract

The lognormal (S sub L, S sub B and S sub U systems of frequency curves are obtained by three simple transformations of the normal curve. By applying the same transformations to the logistic, systems L sub L, L sub B and L sub U are obtained. Some properties of these systems, and their relation to the S systems, are set out. Tables to facilitate fitting L sub U curves by moments are presented. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1979
Accession Number
ADA073481

Entities

People

  • Norman L. Johnson
  • P. R. Tadikamalla

Organizations

  • University of North Carolina at Chapel Hill

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  • Materials and Manufacturing Processes

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  • Method Of Moments
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