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oscar

Optimal Subset Cardinality Regression (OSCAR) Models Using the L0-Pseudonorm

v1.2.1 · Oct 2, 2023 · GPL-3
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Description

Optimal Subset Cardinality Regression (OSCAR) models offer regularized linear regression using the L0-pseudonorm, conventionally known as the number of non-zero coefficients. The package estimates an optimal subset of features using the L0-penalization via cross-validation, bootstrapping and visual diagnostics. Effective Fortran implementations are offered along the package for finding optima for the DC-decomposition, which is used for transforming the discrete L0-regularized optimization problem into a continuous non-convex optimization task. These optimization modules include DBDC ('Double Bundle method for nonsmooth DC optimization' as described in Joki et al. (2018) <doi:10.1137/16M1115733>) and LMBM ('Limited Memory Bundle Method for large-scale nonsmooth optimization' as in Haarala et al. (2004) <doi:10.1080/10556780410001689225>). The OSCAR models are comprehensively exemplified in Halkola et al. (2023) <doi:10.1371/journal.pcbi.1010333>). Multiple regression model families are supported: Cox, logistic, and Gaussian.

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r-devel-linux-x86_64-debian-clang NOTE
r-devel-linux-x86_64-debian-gcc NOTE
r-devel-linux-x86_64-fedora-clang NOTE
r-devel-linux-x86_64-fedora-gcc NOTE
r-devel-macos-arm64 NOTE
r-devel-windows-x86_64 NOTE
r-oldrel-macos-arm64 NOTE
r-oldrel-macos-x86_64 NOTE
r-oldrel-windows-x86_64 NOTE
r-patched-linux-x86_64 NOTE
r-release-linux-x86_64 NOTE
r-release-macos-arm64 NOTE
r-release-macos-x86_64 NOTE
r-release-windows-x86_64 NOTE
Check details (25 non-OK)
NOTE r-devel-linux-x86_64-debian-clang

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-linux-x86_64-debian-clang

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-devel-linux-x86_64-debian-gcc

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-linux-x86_64-debian-gcc

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-devel-linux-x86_64-fedora-clang

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-linux-x86_64-fedora-clang

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-devel-linux-x86_64-fedora-gcc

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-linux-x86_64-fedora-gcc

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-devel-macos-arm64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-macos-arm64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-devel-windows-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'fitS4.R' 'helpers.R'
NOTE r-devel-windows-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-oldrel-macos-arm64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-oldrel-macos-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-oldrel-windows-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-patched-linux-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-patched-linux-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-release-linux-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-release-linux-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-release-macos-arm64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-release-macos-arm64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-release-macos-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-release-macos-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^
NOTE r-release-windows-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'fitS4.R' 'helpers.R'
NOTE r-release-windows-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; should be an integer between {range,range}, Default: 2}
       |                                                                                                        ^

Check History

NOTE 0 OK · 14 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 9, 2026
NOTE r-devel-linux-x86_64-debian-clang

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-linux-x86_64-debian-gcc

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-linux-x86_64-fedora-clang

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-linux-x86_64-fedora-gcc

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-macos-arm64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-devel-windows-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'fitS4.R' 'helpers.R'
NOTE r-patched-linux-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-release-linux-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-release-macos-arm64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-release-macos-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘fitS4.R’ ‘helpers.R’
NOTE r-release-windows-x86_64

DESCRIPTION meta-information

  Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'fitS4.R' 'helpers.R'
NOTE r-oldrel-macos-arm64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; shoul
NOTE r-oldrel-macos-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; shoul
NOTE r-oldrel-windows-x86_64

Rd files

checkRd: (-1) oscar.Rd:44: Lost braces; missing escapes or markup?
    44 | \item{print}{Level of verbosity in Fortran (may not be visible on all terminals); should be an integer between {range, range}, Default: 3}
       |                                                                                                                ^
checkRd: (-1) oscar.control.Rd:41: Lost braces; missing escapes or markup?
    41 | \item{start}{Starting point generation method, see vignettes for details; shoul

Dependency Network

Dependencies Reverse dependencies hamlet Matrix survival pROC oscar

Version History

new 1.2.1 Mar 9, 2026