Description
Routines for simple graphs and network analysis. It can handle large graphs very well and provides functions for generating random and regular graphs, graph visualization, centrality methods and much more.
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CRAN Check Status
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 1, 2026
ERROR 11 OK · 0 NOTE · 1 WARNING · 1 ERROR · 0 FAILURE May 30, 2026
whether package can be installed
Found the following significant warnings: Warning: Obsolescent feature: Old-style character length at (1) See ‘/home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/igraph.Rcheck/00install.out’ for details. * used C compiler: ‘gcc-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’ * used C++ compiler: ‘g++-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’
tests
Running 'testthat.R' [35s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
> library(testthat)
> library(igraph)
Attaching package: 'igraph'
The following object is masked from 'package:testthat':
compare
...[truncated]...
└─base::lapply(...)
15. └─testthat (local) FUN(X[[i]], ...)
16. └─private$handle_error(msg, i)
17. └─cli::cli_abort(...)
18. └─rlang::abort(...)
Execution halted
WARNING 11 OK · 0 NOTE · 2 WARNING · 0 ERROR · 0 FAILURE May 17, 2026
whether package can be installed
Found the following significant warnings: Warning: Obsolescent feature: Old-style character length at (1) See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/igraph.Rcheck/00install.out’ for details. * used C compiler: ‘gcc-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’ * used C++ compiler: ‘g++-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’
whether package can be installed
Found the following significant warnings: Warning: Obsolescent feature: Old-style character length at (1) See ‘/home/hornik/tmp/R.check/r-release-gcc/Work/PKGS/igraph.Rcheck/00install.out’ for details. * used C compiler: ‘gcc-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’ * used C++ compiler: ‘g++-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’
ERROR 11 OK · 0 NOTE · 1 WARNING · 1 ERROR · 0 FAILURE May 15, 2026
whether package can be installed
Found the following significant warnings: Warning: Obsolescent feature: Old-style character length at (1) See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/igraph.Rcheck/00install.out’ for details. * used C compiler: ‘gcc-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’ * used C++ compiler: ‘g++-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’
tests
Running 'testthat.R' [32s]
Running the tests in 'tests/testthat.R' failed.
Complete output:
> library(testthat)
> library(igraph)
Attaching package: 'igraph'
The following object is masked from 'package:testthat':
compare
...[truncated]...
└─base::lapply(...)
15. └─testthat (local) FUN(X[[i]], ...)
16. └─private$handle_error(msg, i)
17. └─cli::cli_abort(...)
18. └─rlang::abort(...)
Execution halted
WARNING 12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE May 13, 2026
whether package can be installed
Found the following significant warnings: Warning: Obsolescent feature: Old-style character length at (1) See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/igraph.Rcheck/00install.out’ for details. * used C compiler: ‘gcc-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’ * used C++ compiler: ‘g++-16 (Debian 16-20260425-1) 16.0.1 20260425 (prerelease) [gcc-16 r16-8812-gd9c07462a22]’
OK 13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE May 2, 2026
ERROR 11 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 25, 2026
whether package can be installed
Installation failed. See ‘/Volumes/Builds/packages/big-sur-x86_64/results/4.6/igraph.Rcheck/00install.out’ for details.
NOTE 11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 10, 2026
installed package size
installed size is 23.3Mb
sub-directories of 1Mb or more:
R 2.1Mb
doc 1.2Mb
help 2.1Mb
libs 17.5Mb
installed package size
installed size is 25.1Mb
sub-directories of 1Mb or more:
R 2.0Mb
doc 1.2Mb
help 2.1Mb
libs 19.3Mb
installed package size
installed size is 10.9Mb
sub-directories of 1Mb or more:
R 1.4Mb
doc 1.2Mb
help 2.1Mb
libs 5.7Mb
WARNING 6 OK · 7 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE Mar 20, 2026
compiled code
File ‘igraph/libs/igraph.so’: Found non-API calls to R: ‘Rf_findVar’, ‘Rf_findVarInFrame’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
compiled code
File ‘igraph/libs/igraph.so’: Found non-API calls to R: ‘Rf_findVar’, ‘Rf_findVarInFrame’ These entry points may be removed soon: ‘Rf_findVar’, ‘Rf_findVarInFrame’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
compiled code
File ‘igraph/libs/igraph.so’: Found non-API calls to R: ‘Rf_findVar’, ‘Rf_findVarInFrame’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
compiled code
File ‘igraph/libs/igraph.so’: Found non-API calls to R: ‘Rf_findVar’, ‘Rf_findVarInFrame’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
compiled code
File 'igraph/libs/x64/igraph.dll': Found non-API calls to R: 'Rf_findVar', 'Rf_findVarInFrame' Compiled code should not call non-API entry points in R. See 'Writing portable packages' in the 'Writing R Extensions' manual, and section 'Moving into C API compliance' for issues with the use of non-API entry points.
installed package size
installed size is 23.3Mb
sub-directories of 1Mb or more:
R 2.1Mb
doc 1.2Mb
help 2.1Mb
libs 17.5Mb
installed package size
installed size is 25.1Mb
sub-directories of 1Mb or more:
R 2.0Mb
doc 1.2Mb
help 2.1Mb
libs 19.3Mb
installed package size
installed size is 10.9Mb
sub-directories of 1Mb or more:
R 1.4Mb
doc 1.2Mb
help 2.1Mb
libs 5.7Mb
NOTE 11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
installed package size
installed size is 23.3Mb
sub-directories of 1Mb or more:
R 2.1Mb
doc 1.2Mb
help 2.1Mb
libs 17.5Mb
installed package size
installed size is 25.1Mb
sub-directories of 1Mb or more:
R 2.0Mb
doc 1.2Mb
help 2.1Mb
libs 19.3Mb
installed package size
installed size is 10.9Mb
sub-directories of 1Mb or more:
R 1.4Mb
doc 1.2Mb
help 2.2Mb
libs 5.7Mb