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EstimationTools

Maximum Likelihood Estimation for Probability Functions from Data Sets

v4.3.1 · Sep 8, 2025 · GPL-3

Description

Total Time on Test plot and routines for parameter estimation of any lifetime distribution implemented in R via maximum likelihood (ML) given a data set. It is implemented thinking on parametric survival analysis, but it feasible to use in parameter estimation of probability density or mass functions in any field. The main routines 'maxlogL' and 'maxlogLreg' are wrapper functions specifically developed for ML estimation. There are included optimization procedures such as 'nlminb' and 'optim' from base package, and 'DEoptim' Mullen (2011) <doi:10.18637/jss.v040.i06>. Standard errors are estimated with 'numDeriv' Gilbert (2011) <https://CRAN.R-project.org/package=numDeriv> or the option 'Hessian = TRUE' of 'optim' function.

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CRAN Check Status

14 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (1)

depends

Dependency Network

Dependencies Reverse dependencies survival DEoptim BBmisc GA Rdpack numDeriv boot autoimage stringr gaussquad car RelDists EstimationTools

Version History

new 4.3.1 Mar 10, 2026
updated 4.3.1 ← 4.0.0 diff Sep 8, 2025
updated 4.0.0 ← 2.1.0 diff Dec 9, 2022
updated 2.1.0 ← 2.0.0 diff Mar 9, 2021
updated 2.0.0 ← 1.2.1 diff Aug 2, 2020
updated 1.2.1 ← 1.2.0 diff Oct 23, 2019
updated 1.2.0 ← 1.1.0 diff Jun 10, 2019
new 1.1.0 Jun 5, 2019