PhFit: A General Phase-type Fitting Tool
András Horváth, Miklós Telek
Abstract:
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. In order to facilitate to control the fitting process, the
tool is equipped with a graphical interface that visualizes the
goodness of the provided approximation from several aspects.
Postscript
András Horváth, 2008-06-25