Parametric multiplicative intensities models fitted to bus motor failure data

Parametric multiplicative intensities models fitted to bus motor failure data

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Article ID: iaor19981726
Country: United Kingdom
Volume: 46
Issue: 2
Start Page Number: 245
End Page Number: 252
Publication Date: Jun 1997
Journal: Applied Statistics
Authors:
Keywords: statistics: distributions, maintenance, repair & replacement
Abstract:

Classes of two- and three-parameter multiplicative intensities models are presented. These have the advantage that they can be simply fitted by standard software. The two-parameter models include the Weibull and extreme value models, whereas the three-parameter models can have bathtub-shaped forms. The bus motor failure data are reanalysed to show that all five failures of the 191 buses can be adequately described by the same two-parameter multiplicative intensity model based on the squared logarithm of distance travelled in service since previous repair. This is a new member of the multiplicative intensity family, based on the squared logarithm of distance, or of time for survival data.

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