Statistics of inertia in a one-table analysis

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Description

Prints of the statistics of inertia in a one-table analysis

Usage

1
inertia.dudi(dudi, row.inertia = FALSE, col.inertia = FALSE)

Arguments

dudi

a duality diagram, object of class dudi

row.inertia

if TRUE, returns the statistics of the decomposition of inertia for the rows

col.inertia

if TRUE, returns the statistics of the decomposition of inertia for the columns

Details

Contributions are printed in 1/10000 and the sign is the sign of the coordinate

Value

a list containing :

TOT

repartition of the total inertia between axes

row.abs

absolute contributions of the decomposition of inertia for the rows

row.rel

relative contributions of the decomposition of inertia for the rows

row.cum

cumulative relative contributions of the decomposition of inertia for the rows

col.abs

absolute contributions of the decomposition of inertia for the columns

col.rel

relative contributions of the decomposition of inertia for the columns

col.cum

cumulative relative contributions of the decomposition of inertia for the columns

Author(s)

Daniel Chessel
Anne B Dufour anne-beatrice.dufour@univ-lyon1.fr

References

Lebart, L., Morineau, A. and Tabart, N. (1977) Techniques de la description statistique, méthodes et logiciels pour la description des grands tableaux, Dunod, Paris, 61–62.

Volle, M. (1981) Analyse des données, Economica, Paris, 89–90 and 118

Lebart, L., Morineau, L. and Warwick, K.M. (1984) Multivariate descriptive analysis: correspondence and related techniques for large matrices, John Wiley and Sons, New York.

Greenacre, M. (1984) Theory and applications of correspondence analysis, Academic Press, London, 66.

Rouanet, H. and Le Roux, B. (1993) Analyse des données multidimensionnelles, Dunod, Paris, 143–144.

Tenenhaus, M. (1994) Méthodes statistiques en gestion, Dunod, Paris, p. 160, 161, 166, 204.

Lebart, L., Morineau, A. and Piron, M. (1995) Statistique exploratoire multidimensionnelle, Dunod, Paris, p. 56,95-96.

Examples

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data(housetasks)
coa1 <- dudi.coa(housetasks, scann = FALSE)
inertia.dudi(coa1, col = TRUE, row = FALSE)$col.rel

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