https://mikejohnson51.r-universe.dev/zonalhttps://mikejohnson51.r-universe.dev/api/packages/zonalhttps://mikejohnson51.r-universe.dev/zonal/zonal.pdfhttps://mikejohnson51.r-universe.dev/zonal/doc/manual.htmlhttps://mikejohnson51.r-universe.dev/zonal/citationhttps://mikejohnson51.r-universe.dev/zonal/citation.txthttps://mikejohnson51.r-universe.dev/zonal/citation.cffhttps://mikejohnson51.r-universe.dev/zonal/doc/categorical.Rmdhttps://mikejohnson51.r-universe.dev/articles/zonal/categorical.htmlhttps://mikejohnson51.r-universe.dev/zonal/doc/weight_creation.Rmdhttps://mikejohnson51.r-universe.dev/articles/zonal/weight_creation.htmlhttps://mikejohnson51.r-universe.dev/zonal/doc/intersections.Rmdhttps://mikejohnson51.r-universe.dev/articles/zonal/intersections.html