https://levisc8.r-universe.dev/spindhttps://levisc8.r-universe.dev/api/packages/spindhttps://levisc8.r-universe.dev/spind/spind.pdfhttps://levisc8.r-universe.dev/spind/doc/manual.htmlhttps://levisc8.r-universe.dev/spind/citationhttps://levisc8.r-universe.dev/spind/citation.txthttps://levisc8.r-universe.dev/spind/citation.cffhttps://levisc8.r-universe.dev/spind/doc/spind_vignette.Rmdhttps://levisc8.r-universe.dev/articles/spind/spind_vignette.html