GDAtools (version 1.0)

indsup: Computes statistics for supplementary individuals

Description

From MCA results, computes statistics (coordinates, squared cosines) for supplementary individuals.

Usage

indsup(resmca, supdata)

Value

• Returns a list:
• coord
  matrix of individuals' coordinates
• cos2
  matrix of individuals' square cosines

References

Le Roux B. and Rouanet H., Multiple Correspondence Analysis, SAGE, Series: Quantitative Applications in the Social Sciences, Volume 163, CA:Thousand Oaks (2010).

Le Roux B. and Rouanet H., Geometric Data Analysis: From Correspondence Analysis to Stuctured Data Analysis, Kluwer Academic Publishers, Dordrecht (June 2004).

See Also

textindsup, speMCA, csMCA, varsup

Examples

## Performs a specific MCA on 'Music' example data set
## ignoring every 'NA' (i.e. 'not available') categories,
## and then computes statistics for supplementary individuals.
data(Music)
getindexcat(Music)
mca <- speMCA(Music[3:nrow(Music),1:5],excl=c(3,6,9,12,15))
indsup(mca,Music[1:2,1:5])