Description Usage Arguments Details Value References Examples
rba
This function generates reduction factors based on the median bias of the Weibull Beta parameter MLE (C4^3.5),
alternatively based on the mean bias(C4^6), and a single factor for both median and mean of the symmetrical lognormal distribution.
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Qx |
The quantity of failures in data (right-censored, suspensions, excluded) |
dist |
A string defining a distribution to be fit. Implemented distributions are "weibull" (default) and "lognormal". |
basis |
a string value indicating the basis for bias reduction, "median" is the default, but "mean" may be chosen. |
Many references discuss the bias reduction in terms of mean reduction. Dr. Abernethy has recommended consideration of the RBA in terms of median bias reduction as a "best practice.
A factor to be multiplied to the MLE Beta or log-Sigma for bias reduction.
Dr. Robert B. Abernethy, (2008) "The New Weibull Handbook, Fifth Edition"
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