insulation: Insulating Fluid Data

Description Usage Format References Examples

Description

Study the breakdown time of an electrical insulating fluid subject to seven different levels of voltage stress.

Usage

1
data("insulation")

Format

A data frame with 76 observations on the following 2 variables.

log.stress

log of voltage stress

log.time

log of failure time

References

Hettmansperger, T.P. and McKean J.W. (2011), Robust Nonparametric Statistical Methods, 2nd ed., New York: Chapman-Hall.

Examples

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myscores <- logGFscores
myscores@param <- c(1,5)
fit <- rfit(log.time ~ log.stress,scores=myscores,data=insulation)
summary(fit)
fit$tauhat

Example output

Loading required package: Rfit
Call:
rfit.default(formula = log.time ~ log.stress, data = insulation, 
    scores = myscores)

Coefficients:
            Estimate Std. Error t.value   p.value    
(Intercept)  63.9971     6.5205  9.8147 4.890e-15 ***
log.stress  -17.6728     1.8642 -9.4801 2.073e-14 ***
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Overall Wald Test: 89.87235 p-value: 0 

[1] 1.570054

npsm documentation built on May 2, 2019, 9:41 a.m.

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