NEWS

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BivLaplaceRL 1.0.0 (2026-04-30)

New features

• Added univariate residual life analysis:

  • lt_residual() — Laplace transform of residual life E[e^{-sX} | X > t]
  • hazard_rate() — hazard rate h(t) = f(t)/S(t)
  • mean_residual() — mean residual life m(t) = E[X-t | X>t]
  • np_lt_residual() — nonparametric estimator

• Added three univariate stochastic order checks:

  • lt_rl_order() — Laplace transform order of residual lives
  • hr_order() — hazard rate order
  • mrl_order() — mean residual life order

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BivLaplaceRL 0.2.0 (2026-04-29)

CRAN submission release

• Fixed CRAN review issues: corrected URLs, removed non-ASCII Unicode characters from Rd files, and updated .Rbuildignore exclusions.
• Added WORDLIST for spell-checking.
• Updated package documentation and metadata.

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BivLaplaceRL 0.1.0

Initial release

• Added bivariate Laplace transform of residual lives: blt_residual(), blt_residual_gumbel(), np_blt_residual(), sim_blt_residual().

• Added bivariate hazard gradient and mean residual life: biv_hazard_gradient(), biv_mean_residual().

• Added NBUHR/NWUHR aging class test: nbuhr_test().

• Added bivariate Laplace transform of reversed residual lives: blt_reversed(), blt_reversed_fgm(), blt_reversed_power().

• Added reversed hazard gradient and reversed MRL: biv_rhazard_gradient(), biv_rmrl().

• Added stochastic ordering functions: blt_order_residual(), blt_order_reversed(), biv_whr_order(), biv_wmrl_order(), biv_brlmr_order(), biv_wrhr_order(), biv_wrmrl_order().

• Added entropy and information generating functions: shannon_entropy(), info_gen_function().

• Added parametric distributions: Gumbel bivariate exponential, FGM, bivariate power, Schur-constant.

• Added plotting utilities: plot_blt_residual(), plot_blt_reversed().