PhFit: A General Phase-Type Fitting Tool
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- Horváth A., Telek M. (2002) PhFit: A General Phase-Type Fitting Tool. In: Field T., Harrison P.G., Bradley J., Harder U. (eds) Computer Performance Evaluation: Modelling Techniques and Tools. TOOLS 2002. Lecture Notes in Computer Science, vol 2324. Springer, Berlin, Heidelberg
PhFit, a new Phase-type fitting tool is presented in this paper. The presented tool is novel from several aspects. It allows for approximating distributions or set of samples not only by continuous but by discrete Phase-type distributions as well. The implemented algorithms separate the fitting of the body and the tail part of the distribution which results in satisfactory fitting also for heavy-tail distributions. Moreover, PhFit allows the user to choose the distance measure according to which the fitting is performed.
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