Spatial Covariance Functions R package ncf version 1.3-3 CRAN Task View: Spatial (https://CRAN.R-project.org/view=Spatial) Spatial (cross-)covariance and related geostatistical tools: the nonparametric (cross-)covariance function , the spline correlogram, the nonparametric phase coherence function, local indicators of spatial association (LISA), (Mantel) correlogram, (Partial) Mantel test. Software Depends: R (>= 2.8.0) Ottar N. Bjornstad <onb1@psu.edu> Comprehensive R Archive Network (CRAN) Ottar N. Bjornstad [aut, cre], Jun Cai [ctb] GPL-3 2026-01-16 application/tgz https://CRAN.R-project.org/package=ncf doi:10.32614/CRAN.package.ncf