[R] [R-pkgs] anacor: yet another ca package

From: Jan de Leeuw <deleeuw_at_stat.ucla.edu>
Date: Sun, 23 Dec 2007 09:57:08 -0800

anacor-0.9.0 is on CRAN (by De Leeuw and Mair)

anacor does correspondence analysis and canonical correspondence analysis. It can make row plots, column plots, joint plots, Benzécri plots, regression plots, and transformation plots. Where appropriate, plots can be in 3d using either rgl or scatterplot3d. Row and column points can be in standard scaling, Benzécri scaling, Goodman scaling, row-centroid, or column-centroid scaling.

The summary method writes out a table with the chi-square (inertia) decomposition, it also writes out the singular values, and their asymptotic standard errors under multinomial sampling. Plots of the category quantifications (row scores and column scores) can be made optionally with asymptotic confidence ellipses, again based on multinomial sampling.

The package contain various utilities to switch data formats, in particular to transform data frames to Burt matrices, to indicator matrices, and even to fuzzy indicator matrices using B-spline bases.

The vignette for the package (not added yet) is a paper also submitted to the special psychoR issue of JSS. You can get a preprint at


The psychoR directory also has the anacor package, the homals package, and the homals paper. smacof (many forms of multidimensional scaling) is next.

Jan de Leeuw, 11667 Steinhoff Rd, Frazier Park, CA 93225 home 661-245-1725 mobile 661-231-5416 work 310-825-9550 .mac: jdeleeuw +++ aim: deleeuwjan +++ skype: j_deleeuw

          There is no worse screen to block out     the spirit than confidence in our own intelligence.

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