fastbioclim - Scalable and Flexible Derivation of Custom-Time Bioclimatic and
Environmental Summary Variables
Provides an efficient tool for creating custom-time
bioclimatic and derived environmental summary variables from
user-supplied raster data for user-defined timeframes. The
package overcomes computational bottlenecks by automatically
switching between an in-memory framework using the 'terra'
package to maximize speed for smaller datasets, and an on-disk
tiling framework for rasters that exceed available RAM,
leveraging 'exactextractr' and 'Rfast' to process data in
chunks. The core functions, derive_bioclim() and
derive_statistics(), offer a unified interface with flexibility
for custom time periods beyond standard quarters and the use of
fixed temporal indices, facilitating the creation of
temporally-matched environmental variables for ecological and
biogeographical modeling. Visit the package website
<https://gepinillab.github.io/fastbioclim/> to find tutorials
in English and Spanish.
