WeibullR (version 1.1.10)

weibayes: Fitting for Minimal Failure Datasets

Description

A simplistic fitting method also called "1-parameter Weibull" based on a "prior" known beta value.

Usage

weibayes(x, s=NULL, beta)

Arguments

x

Either a vector of class "numeric" or "integer" with (life-)time observations, or a dataframe containing at least $time and $event columns and optionally a $qty column.

s

An optional vector of suspension data.

beta

A weibull shape parameter based on prior like kind study.

Value

Returns the Weibull scale, Eta, paramater value.

Details

This function implements a very simplistic relationship defined by two lines of R code: t_eta<-(times^beta)/nfail out_val<-sum(t_eta)^(1/beta) Note: for a single failure dataset, with beta = 1, the return is simply the sum of the failure time value plus sum of all suspension times. Should no failures exist, then the nfail will be set to 1 for a pessimistic solution.

Examples

# NOT RUN {
fail<-5
susp<-rweibull(10, 1, 10)
eta<-weibayes(fail, susp, beta=1)
# }