EMSS
Some EM-Type Estimation Methods for the Heckman Selection Model
Description
Some EM-type algorithms to estimate parameters for the well-known Heckman selection model are provided in the package. Such algorithms are as follow: ECM(Expectation/Conditional Maximization), ECM(NR)(the Newton-Raphson method is adapted to the ECM) and ECME(Expectation/Conditional Maximization Either). Since the algorithms are based on the EM algorithm, they also have EM’s main advantages, namely, stability and ease of implementation. Further details and explanations of the algorithms can be found in Zhao et al. (2020) <doi: 10.1016/j.csda.2020.106930>.
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| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| 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 details (2 non-OK)
CRAN incoming feasibility
Maintainer: ‘Sang Kyu Lee <leesa111@msu.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Kexuan",
family = "Yang",
role = "aut",
email = "717260446@qq.com"),
person(given = c("Sang", "Kyu"),
family = "Lee",
role = c("aut", "cre"),
email = "leesa111@msu.edu"),
person(given = "Jun",
family = "Zhao",
role = "aut",
email = "zhaojun2021@hotmail.com"),
person(given = "Hyoung-Moon",
family = "Kim",
role = "aut",
email = "hmk966a@gmail.com"))
as necessary.
CRAN incoming feasibility
Maintainer: ‘Sang Kyu Lee <leesa111@msu.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Kexuan",
family = "Yang",
role = "aut",
email = "717260446@qq.com"),
person(given = c("Sang", "Kyu"),
family = "Lee",
role = c("aut", "cre"),
email = "leesa111@msu.edu"),
person(given = "Jun",
family = "Zhao",
role = "aut",
email = "zhaojun2021@hotmail.com"),
person(given = "Hyoung-Moon",
family = "Kim",
role = "aut",
email = "hmk966a@gmail.com"))
as necessary.
Check History
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘Sang Kyu Lee <leesa111@msu.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Kexuan",
family = "Yang",
role = "aut",
email
...[truncated]...
"aut",
email = "zhaojun2021@hotmail.com"),
person(given = "Hyoung-Moon",
family = "Kim",
role = "aut",
email = "hmk966a@gmail.com"))
as necessary.
CRAN incoming feasibility
Maintainer: ‘Sang Kyu Lee <leesa111@msu.edu>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: c(person(given = "Kexuan",
family = "Yang",
role = "aut",
email
...[truncated]...
"aut",
email = "zhaojun2021@hotmail.com"),
person(given = "Hyoung-Moon",
family = "Kim",
role = "aut",
email = "hmk966a@gmail.com"))
as necessary.