pamctdp (version 0.2.2)

inertia.wwm: Additional aids to interpretation of Double Intra Correspondence Analysis

Description

Aids to interpretation associated to subclouds in Double Intra Correspondence Analysis (ICA, IBCA, ...). Square distances to the origin of rows and columns

Usage

inertia.wwm(ACww, xax=1,yax = 2,dec=1,ti=1000)
## S3 method for class 'wwinertia':
print(x, \dots)

Arguments

ACww

object of class: wwmodel

xax

the axis number of x

yax

the axis number of y

dec

number of decimal digits in $fil and $col

ti

the inertia values are multiplied by ti

x

object of class: wwinertia

...

further arguments passed to or from other methods

Value

• Returns a list of class wwinertia containing :
• cloud.col
  column band weights
• cloud.row
  row band weights
• rel.col
  column band qualities of the representation
• rel.row
  row band qualities of the representation
• abs.col
  column band absolute contributions
• abs.row
  row band absolute contributions
• col
  a table of inertia for the column clouds. The inertia values are multiplied by ti
• row
  a table of inertia for the row clouds. The inertia values are multiplied by ti
• coraxisJ
  a data frame giving the correlations between the axis separate and global analysis for column bands
• coraxisL
  a data frame giving the correlations between the axis separate and global analysis for row bands
• dis.row
  square distances of rows to the origin
• dis.col
  square distances of columns to the origin

encoding

latin1

Details

Aids to interpretation associated to the bands. There are J column bands and L row bands.

References

B�cue M., Pag�s J. and Pardo C.E. (2005). Contingency table with a double partition on rows and columns. Visualization and comparison of the partial and global structures. In: Proceedings ASMDA, Brest, France. May,17-20, 2005. Eds: Jacques Janssen and Philippe Lenca. ENST Bretagne. pages 355--364. http://conferences.telecom-bretagne.eu/asmda2005/IMG/pdf/proceedings/355.pdf Cazes, P., Chessel, D. and Dol�dec, S. (1988) L'analyse des correspondances internes d'un tableau partitionn� : son usage en hydrobiologie. Revue de Statistique Appliquee, 36, 39--54. http://pbil.univ-lyon1.fr/R/articles/arti054.pdf Pardo Campo El�as (2005). An�lisis de correspondencias de tablas de contingencia estructuradas. In: Memorias del Coloquio Distrital de Matem�ticas y Estad�stica. Volume 7. Universidad Distrital, Bogot� http://www.docentes.unal.edu.co/cepardot/docs/ColoquioDistritalMatEst/AnalCorresTCE.pdf

Examples

data(ardeche)
# change column names
names(ardeche$tab) <- paste(ardeche$sta.fac,ardeche$dat.fac,sep="") 
rownames(ardeche$tab) <- # change row names
paste(strtrim(rownames(ardeche$tab),1),substr(rownames(ardeche$tab),4,
	length(rownames(ardeche$tab))),sep="")
coa1 <- dudi.coa(ardeche$tab, scann = FALSE, nf = 4)
ww <- witwit.model(coa1, ardeche$row.blocks, ardeche$col.blocks, scann = FALSE)
aids <- inertia.wwm(ww) 
aids$col
aids$row