galts
Genetic Algorithms and C-Steps Based LTS (Least Trimmed Squares) Estimation
Description
Includes the ga.lts() function that estimates LTS (Least Trimmed Squares) parameters using genetic algorithms and C-steps. ga.lts() constructs a genetic algorithm to form a basic subset and iterates C-steps as defined in Rousseeuw and van-Driessen (2006) to calculate the cost value of the LTS criterion. OLS (Ordinary Least Squares) regression is known to be sensitive to outliers. A single outlying observation can change the values of estimated parameters. LTS is a resistant estimator even the number of outliers is up to half of the data. This package is for estimating the LTS parameters with lower bias and variance in a reasonable time. Version >=1.3 includes the function medmad for fast outlier detection in linear regression.
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CRAN Check Status
Show all 14 flavors
| 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: ‘Mehmet Hakan Satman <mhsatman@istanbul.edu.tr>’
No Authors@R field in DESCRIPTION.
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Authors@R: person(given = c("Mehmet", "Hakan"),
family = "Satman",
role = c("aut", "cre"),
email = "mhsatman@istanbul.edu.tr")
as necessary.
CRAN incoming feasibility
Maintainer: ‘Mehmet Hakan Satman <mhsatman@istanbul.edu.tr>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = c("Mehmet", "Hakan"),
family = "Satman",
role = c("aut", "cre"),
email = "mhsatman@istanbul.edu.tr")
as necessary.
Check History
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘Mehmet Hakan Satman <mhsatman@istanbul.edu.tr>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = c("Mehmet", "Hakan"),
family = "Satman",
role = c("aut", "cre"),
email = "mhsatman@istanbul.edu.tr")
as necessary.
CRAN incoming feasibility
Maintainer: ‘Mehmet Hakan Satman <mhsatman@istanbul.edu.tr>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = c("Mehmet", "Hakan"),
family = "Satman",
role = c("aut", "cre"),
email = "mhsatman@istanbul.edu.tr")
as necessary.