spacc
Fast Spatial Species Accumulation Curves
High-performance spatial species accumulation curves using nearest-neighbor algorithms. Implements 'kNN' and 'kNCN' sampling methods with a 'C++' backend for speed. Supports Hill numbers (q=0,1,2), beta diversity partitioning (turnover/nestedness), coverage-based rarefaction and extrapolation, phylogenetic diversity (Faith's PD, mean pairwise distance, mean nearest taxon distance), functional diversity accumulation, diversity-area relationships (DAR), endemism-area curves, sampling-effort correction and fragmentation analysis, and species-area relationship (SAR) models based on extreme value theory (EVT). Multiple starting points (seeds) provide uncertainty quantification. Methods are described in 'Chao' et al. (2014) <doi:10.1890/13-0133.1>, 'Baselga' (2010) <doi:10.1111/j.1466-8238.2009.00490.x>, 'Chao' and 'Jost' (2012) <doi:10.1890/11-1952.1>, 'Faith' (1992) <doi:10.1016/0006-3207(92)91201-3>, 'Ma' (2018) <doi:10.1002/ece3.4526>, 'Borda-de-Agua' et al. (2025) <doi:10.1038/s41467-025-59239-7>, 'Hanski' et al. (2013) <doi:10.1073/pnas.1311190110>, and 'Jost' (2007) <doi:10.1890/06-1736.1>.
Versions across snapshots
| Version | Repository | File | Size |
|---|---|---|---|
0.8.3 |
rolling linux/jammy R-4.5 | spacc_0.8.3.tar.gz |
1.2 MiB |
0.8.3 |
rolling linux/noble R-4.5 | spacc_0.8.3.tar.gz |
1.2 MiB |
0.8.3 |
rolling source/ R- | spacc_0.8.3.tar.gz |
666.5 KiB |
0.8.3 |
latest linux/jammy R-4.5 | spacc_0.8.3.tar.gz |
1.2 MiB |
0.8.3 |
latest linux/noble R-4.5 | spacc_0.8.3.tar.gz |
1.2 MiB |
0.8.3 |
latest source/ R- | spacc_0.8.3.tar.gz |
666.5 KiB |
0.8.3 |
2026-04-23 source/ R- | spacc_0.8.3.tar.gz |
0 B |