Random Number Generation and Inferences for Two-Stage Life-Testing Data

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Documentation for package ‘stagelife’ version 0.1.0

• DESCRIPTION file
• User guides, package vignettes and other documentation
• Package NEWS
• Package README

Help Pages

coef.slt_fit	Extract coefficients from a fitted two-stage life testing model
confint.slt_fit	Asymptotic (Wald) confidence intervals for a fitted two-stage life testing model
dslt	Population CDF/PDF/quantile function of a two-stage step-stress model
fit_slt	Fit a two-stage life testing model by maximum likelihood
logLik.slt_fit	Extract the log-likelihood of a fitted two-stage life testing model
loglik_slt	Two-stage cumulative-exposure log-likelihood
plot.slt_fit	Diagnostic plots for a fitted two-stage life-testing model
plot_cdf	Fitted vs empirical CDF plot
plot_pp	P-P (probability-probability) plot
plot_qq	Q-Q (quantile-quantile) plot
plot_survival	Fitted vs empirical survival curve
print.slt_fit	Print a fitted two-stage life testing model
print.summary.slt_fit	Print a summary of a fitted two-stage life testing model
pslt	Population CDF/PDF/quantile function of a two-stage step-stress model
qslt	Population CDF/PDF/quantile function of a two-stage step-stress model
rslt	Simulate data from the two-stage life-testing model
slt_bobotas_kateri_2015	Bobotas & Kateri (2015) simple step-stress data
slt_bootstrap_ci	Bootstrap confidence intervals for a fitted two-stage life testing model
slt_cases	Identifiable parameter-sharing cases for two-stage estimation
slt_dist	Baseline density, distribution and quantile functions for a distribution
slt_equiv_age	Equivalent age under the elevated stress
slt_families	Available baseline lifetime distributions
slt_gof_ks	Kolmogorov-Smirnov goodness-of-fit test with parametric-bootstrap correction for a fitted two-stage life testing model
slt_han_kundu_2014	Han & Kundu (2014) simple step-stress data
slt_lrt	Likelihood-ratio test between nested parameter-sharing cases
slt_model_comparison	Compare several fitted models by information criteria
slt_prob_stage1	Probability of observing at least one stage-1 failure (Laumen & Cramer, Lemma 4.1)
slt_reduce_params	Reduce full (theta0, theta1) parameters to a case's free parameters
slt_tau	p-th quantile of the baseline-stage distribution
slt_wang_fei_2003	Wang & Fei (2003) simple step-stress data
slt_zhu_2010	Zhu (2010) simple step-stress data
summary.slt_fit	Summarise a fitted two-stage life testing model
vcov.slt_fit	Variance-covariance matrix of a fitted two-stage life testing model's coefficients