Pycnophylactic Interpolation R package pycno version 1.4.1 Given a SpatialPolygonsDataFrame and a set of populations for each polygon, compute a population density estimate based on Tobler's pycnophylactic interpolation algorithm. The result is a SpatialGridDataFrame. Methods are described in Tobler Waldo R. (1979) <doi:10.1080/01621459.1979.10481647>. Software Depends: R (>= 4.2) Imports: methods, sp, sf Francesca Bitonti <francesca.bitonti@unict.it> Comprehensive R Archive Network (CRAN) Chris Brunsdon [aut], Francesca Bitonti [cre] GPL (>= 2) 2025-09-02 application/tgz https://CRAN.R-project.org/package=pycno doi:10.32614/CRAN.package.pycno