Simple Correspondence Analysis

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Description

A fast procedure for computing simple correspondence analysis.

Usage

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fast_sca(dat)

Arguments

dat

Input data: can be a table or a data frame (but the data frame must have only two columns).

Value

A list with components:

val

The eigenvalues or principal inertias, indicating how much each latent axis explains.

pos1

The coordinates of the first set of levels (viz. the row levels of a frequency table).

pos2

The coordinates of the second set of levels (viz. the column levels of a frequency table).

References

Greenacre, M. (2007) Correspondence analysis in practice, Second edition. Boca Raton: Chapman and Hall/CRC.

Examples

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SndT_Fra <- read.table(system.file("extdata", "SndT_Fra.txt", package = "svs"),
   header = TRUE, sep = "\t", quote = "\"", encoding = "UTF-8")
sca.SndT_Fra <- fast_sca(SndT_Fra)
sca.SndT_Fra

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