Modifications to Computer Program for Parameter Estimation for the Generalized Gamma Distribution,

Abstract

An extensive study of an existing digital computer program for determining parameters required to represent SES-100B trials data by a generalized gamma function is carried out. The purpose of the study is to resolve the difficulties encountered in earlier studies. In these earlier studies, approximately 5 percent of the cases analyzed produced unrealistic values for the distribution parameters. In order to resolve this problem, data sensitivity studies are carried out. Based on results of the study, criteria are developed for determining cases that should not be processed. Three other techniques besides the Stacy-Mihram method are investigated. The most successful alternative method is the maximum likelihood method, which is incorporated into the new digital computer program. A program listing and an example of the generated output are included in this report. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1977
Accession Number
ADA108523

Entities

People

  • David W Taylor
  • Michel K. Ochi

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Computations
  • Computer Programs
  • Computers
  • Databases
  • Digital Computers
  • Distribution Functions
  • Equations
  • Experimental Data
  • Least Squares Method
  • Maximum Likelihood Estimation
  • Measurement
  • Probability
  • Probability Density Functions
  • Probability Distributions
  • Random Variables
  • Statistical Analysis
  • Steady State

Readers

  • Computational Modeling and Simulation
  • Computer Science.
  • Systems Analysis and Design