S4DM

Small Sample Size Species Distribution Modeling

v0.0.2 · May 10, 2026 · MIT + file LICENSE

Description

Implements a set of distribution modeling methods that are suited to species with small sample sizes (e.g., poorly sampled species or rare species). While these methods can also be used on well-sampled taxa, they are united by the fact that they can be utilized with relatively few data points. More details on the currently implemented methodologies can be found in Maitner et al. (2026) <doi:10.1002/ecog.08112>, Drake and Richards (2018) <doi:10.1002/ecs2.2373>, Drake (2015) <doi:10.1098/rsif.2015.0086>, and Drake (2014) <doi:10.1890/ES13-00202.1>.

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CRAN Check Status

13 OK

Show all 13 flavors

Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	OK	592.6s
r-devel-linux-x86_64-debian-gcc	OK	403.7s
r-devel-linux-x86_64-fedora-clang	OK	957.7s
r-devel-linux-x86_64-fedora-gcc	OK	973.9s
r-devel-windows-x86_64	OK	528s
r-oldrel-macos-arm64	OK	147s
r-oldrel-macos-x86_64	OK	541s
r-oldrel-windows-x86_64	OK	723s
r-patched-linux-x86_64	OK	564.1s
r-release-linux-x86_64	OK
r-release-macos-arm64	OK	146s
r-release-macos-x86_64	OK	500s
r-release-windows-x86_64	OK	531s

Check History

OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 9, 2026

ERROR 12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Jun 8, 2026

ERROR r-devel-linux-x86_64-debian-gcc

package dependencies

Package required but not available: ‘np’

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.

OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE May 17, 2026

ERROR 0 OK · 11 NOTE · 0 WARNING · 2 ERROR · 0 FAILURE May 7, 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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.R’

ERROR 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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.R’

ERROR 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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    'fit_density_ratio.R' 'fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    'fit_density_ratio.R' 'fit_plug_and_play.R'

NOTE r-oldrel-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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.R’

NOTE r-oldrel-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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.R’

NOTE r-oldrel-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:
    'fit_density_ratio.R' 'fit_plug_and_play.R'

NOTE 0 OK · 12 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 27, 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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    'fit_density_ratio.R' 'fit_plug_and_play.R'

NOTE r-oldrel-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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.R’

NOTE r-oldrel-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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.R’

NOTE r-oldrel-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:
    'fit_density_ratio.R' 'fit_plug_and_play.R'

ERROR 3 OK · 10 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Mar 10, 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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.R’

ERROR 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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    'fit_density_ratio.R' 'fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    ‘fit_density_ratio.R’ ‘fit_plug_and_play.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:
    'fit_density_ratio.R' 'fit_plug_and_play.R'

Dependency Network

Version History

2 tracked

updated 0.0.2 ← 0.0.1 diff May 11, 2026

new 0.0.1 Mar 10, 2026

R Observatory began tracking this package on Mar 10, 2026; it first appeared on CRAN Jan 10, 2025. Releases before tracking aren’t shown.