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ncf (version 1.1-2)

spatial nonparametric covariance functions

Description

R functions for analyzing spatial (cross-)covariance: the nonparametric (cross-)covariance, the spline correlogram, the nonparametric phase coherence function, and related.

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Version

Install

install.packages('ncf')

Monthly Downloads

966

Version

1.1-2

License

GPL (>= 2)

Maintainer

Ottar Bjornstad

Last Published

January 16th, 2026

Functions in ncf (1.1-2)

Uni- and multivariate spatial correlograms

Nonparametric (Cross-)Covariance Function from stationary random fields

Fourier filter for c'fns

Greater circle distance

Anisotropic nonparametric (cross-)correlation function for spatio-temporal data

Non-cenetered spatial (cross-)correlogram

Plots anisotropic spatial correlation-functions

Local inidcator of spatial association

Non-centered inidcators of spatial association

function to calculate the distance at which the cross-correlation peaks for Sncf objects

the mean (cross-)correlation (with bootstrapp CI) for a panel of spatiotemporal data

spline.correlog

Uni- and multivariate spline correlograms

Plots spatial correlograms

partial.mantel.test

Partial Mantel test

Spatio-temporal data panel of Larch Budmoth defoliation

Simulate spatial data

spline.correlog.2D

Anisotropic nonparametric (cross-)correlation function for univariate spatial data

Summarizing anisotropic spatial correlation-functions

summary.spline.correlog

Summarizing spline correlograms

Print function for mSynch objects

Plots nonparametric spatial correlation-functions

Summarizing nonparametric spatial correlation-functions

Plots local indicators of spatial association

Plots nonparametric spatial covariance-functions

Nonparametric (cross-)correlation function for spatio-temporal data

Utility function

Plots the cc.offset summary of the anisotropic spatial correlation-functions

plot.spline.correlog

Plots spline correlograms