Package: chiplot
Type: Package
Title: Chi-Plots for Assessing Bivariate and Multivariate Dependence
Version: 0.1.0
Authors@R: c(
    person("Nicholas I.", "Fisher", email = "nif@valuemetrics.com.au",
           role = c("aut", "cre", "cph")),
    person("Alan J.", "Lee", role = "aut"),
    person("ValueMetrics Australia", role = "cph",
           comment = "copyright holder of the geochem data"))
Description: Graphical methods for assessing dependence. The chi-plot
        of Fisher and Switzer (1985) <doi:10.1093/biomet/72.2.253> and
        (2001) <doi:10.1198/000313001317098248> supplements a
        scatterplot of two variables, producing characteristic patterns
        for different forms of association. Its multivariate extension
        (Fisher and Lee, 2026) uses generalized orthants and data depth
        to explore whether a multivariate distribution factorizes into
        independent blocks of variables, with permutation tests and
        guidelines. Functions are provided for single chi-plots, a
        scatterplot matrix with chi-plots above the diagonal,
        multivariate chi-plots for a given partition of the variables,
        and a search over all partitions. Computation-intensive parts
        are written in C.
License: GPL (>= 2)
Encoding: UTF-8
Depends: R (>= 4.0.0)
Imports: graphics, grDevices, stats
Suggests: fda.usc
LazyData: true
NeedsCompilation: yes
Packaged: 2026-11-07 12:17:18 UTC; root
Author: Nicholas I. Fisher [aut, cre, cph], Alan J. Lee [aut],
        ValueMetrics Australia [cph] (copyright holder of the geochem
        data)
Maintainer: Nicholas I. Fisher <nif@valuemetrics.com.au>
Repository: https://nif-git.r-universe.dev
Date/Publication: 2026-11-06 23:17:29 UTC
RemoteUrl: https://github.com/cran/chiplot
RemoteRef: HEAD
RemoteSha: 8c81eb6ca103468a79d63b22b26c16643156bf53