ade4 (version 1.01)

inertia.dudi: Statistics of inertia in a one-table analysis

Description

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

Usage

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

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

Details

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

References

Lebart, L., Morineau, A. and Tabart, N. (1977) Techniques de la description statistique, m�thodes et logiciels pour la description des grands tableaux, Dunod, Paris, 61--62. Volle, M. (1981) Analyse des donn�es, 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 donn�es multidimensionnelles, Dunod, Paris, 143--144. Tenenhaus, M. (1994) M�thodes 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

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