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Fast spatial species accumulation curves with C++ performance
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Spatial species accumulation curves built by fixed-focus expansion in C++.
Sample a focal point in continuous space, rank every sampling unit by its distance from
that point, then count new species along the ranking. spacc repeats this from many focal
points (Rcpp/RcppParallel backend), so the curve carries a confidence ribbon showing how
richness depends on where expansion begins.
The classical curve in vegan::specaccum() shuffles sites in random order, without using
their spatial arrangement.查看完整 README ↗目前无法加载完整 README。请通过原文链接阅读。 以下为已保存的摘录。
Spatial species accumulation curves built by fixed-focus expansion in C++.
Sample a focal point in continuous space, rank every sampling unit by its distance from
that point, then count new species along the ranking. spacc repeats this from many focal
points (Rcpp/RcppParallel backend), so the curve carries a confidence ribbon showing how
richness depends on where expansion begins.
The classical curve in vegan::specaccum() shuffles sites in random order, without using
their spatial arrangement.查看完整 README ↗