Modeling input processes with Johnson distributions

  • Authors:
  • D. J. DeBrota;R. S. Dittus;J. J. Swain;S. D. Roberts;J. R. Wilson

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • WSC '89 Proceedings of the 21st conference on Winter simulation
  • Year:
  • 1989

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Abstract

This paper provides an introduction to the Johnson translation system of probability distributions, and it describes methods for using the Johnson system to model input processes in simulation experiments. For situations in which little or no sample information is available, we have developed a visual interactive method to estimate bounded Johnson distributions subjectively; and we have implemented this technique in VESIFIT, a public-domain software package. For fitting all types of Johnson distributions based on sample data, we have implemented several new statistical-estimation methods as well as some standard techniques in FITTR1, another public-domain software package. We present several examples illustrating the use of VISIFIT and FITTR1 for simulation input modeling.