Skip to content

samc

Spatial Absorbing Markov Chains

v4.2.1 · Mar 13, 2026 · AGPL (>= 3)

Description

Implements functions for working with absorbing Markov chains. The implementation is based on the framework described in "Toward a unified framework for connectivity that disentangles movement and mortality in space and time" by Fletcher et al. (2019) <doi:10.1111/ele.13333>, which applies them to spatial ecology. This framework incorporates both resistance and absorption with spatial absorbing Markov chains (SAMC) to provide several short-term and long-term predictions for metrics related to connectivity in landscapes. Despite the ecological context of the framework, this package can be used in any application of absorbing Markov chains.

Downloads

CRAN

694

Last 30 days

4538th

2K

Last 90 days

8K

Last year

Trend: +18.6% (30d vs prior 30d)

r2u CRAN

40

Last 30 days

145

Last 90 days

442

Last year

Trend: -27.3% (30d vs prior 30d)

autoCRAN

3

Last 7 days

14

Last 30 days

2

All-time

autoCRAN-only: this name is served only by autoCRAN, so the count is exact.

CRAN Check Status

13 OK
Show all 13 flavors
Flavor Status
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-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 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

PDF version of manual

Rd conversion errors:
Converting parsed Rd's to LaTeX .Warning in file(out, "wt") :
  cannot open file '/tmp/RtmpvHyNl9/ltx218248245a44e5/rasterize.tex': No space left on device
Error in file(out, "wt") : cannot open the connection
WARNING 12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE Jun 7, 2026
WARNING r-devel-linux-x86_64-debian-gcc

Rd files

cannot open the connection
problem found in ‘cond_passage.Rd’
OK 12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 25, 2026
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 22, 2026
NOTE r-oldrel-macos-arm64

installed package size

installed size is 16.3Mb
  sub-directories of 1Mb or more:
    libs  15.2Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is 16.8Mb
  sub-directories of 1Mb or more:
    libs  15.6Mb
ERROR 11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 18, 2026
ERROR r-devel-windows-x86_64

whether package can be installed

Installation failed.
See 'd:/Rcompile/CRANpkg/local/4.6/samc.Rcheck/00install.out' for details.
NOTE r-oldrel-macos-arm64

installed package size

installed size is 16.3Mb
  sub-directories of 1Mb or more:
    libs  15.2Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is 16.8Mb
  sub-directories of 1Mb or more:
    libs  15.6Mb
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
NOTE r-oldrel-macos-arm64

installed package size

installed size is 16.3Mb
  sub-directories of 1Mb or more:
    libs  15.2Mb
NOTE r-oldrel-macos-x86_64

installed package size

installed size is 16.8Mb
  sub-directories of 1Mb or more:
    libs  15.6Mb

Dependency Network

Dependencies Reverse dependencies Matrix raster terra samc

Version History

19 tracked
updated 4.2.1 ← 4.1.0 diff Mar 13, 2026
new 4.1.0 Mar 10, 2026
updated 4.1.0 ← 4.0.0 diff Feb 4, 2026
updated 4.0.0 ← 3.3.0 diff Oct 29, 2024
updated 3.3.0 ← 3.2.1 diff Jul 10, 2024
updated 3.2.1 ← 3.2.0 diff May 8, 2023
updated 3.2.0 ← 3.1.0 diff May 3, 2023
updated 3.1.0 ← 3.0.2 diff Apr 6, 2023
updated 3.0.2 ← 2.0.1 diff Jan 31, 2023
updated 2.0.1 ← 2.0.0 diff Jun 10, 2022
updated 2.0.0 ← 1.4.1 diff Oct 22, 2021
updated 1.4.1 ← 1.4.0 diff Sep 1, 2021
updated 1.4.0 ← 1.3.0 diff Jun 26, 2021
updated 1.3.0 ← 1.2.1 diff Mar 31, 2021
updated 1.2.1 ← 1.2.0 diff Nov 2, 2020