angles.csa {GDAtools}

Cosine similarities and angles between CSA and MCA

Description

Computes the cosines similarities and angles between the components of a CSA and those of a MCA.

Usage

angles.csa(rescsa, resmca)

Arguments

rescsa

object of class csMCA

resmca

object of class MCA or speMCA

Value

A list of matrices:

cosines

Cosine similarities

angles

Angles

Note

This function is adapted from csa.measures in sco.ca package.

Author(s)

Nicolas Robette

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

MCA, speMCA, csMCA

Examples

## Performs a specific MCA and a CSA on the Music example data set
## and computes cosine similarities and angles
data(Music)
junk <- c("FrenchPop.NA", "Rap.NA", "Rock.NA", "Jazz.NA", "Classical.NA")
resmca <- speMCA(Music[,1:5], excl = junk)
female <- Music$Gender=="Women"
rescsa <- csMCA(Music[,1:5], subcloud = female, excl = junk)
angles.csa(rescsa, resmca)