centers_ca {svs}

Compute Coordinates for Cluster Centers

Description

A helper function for computing the coordinates of cluster centers (typically used in correspondence analysis).

Usage

centers_ca(x, clusters, freq)

Arguments

x

A numeric matrix.

clusters

A clustering of the row levels of x: either a list or the output of kmeans.

freq

An optional vector of frequency counts for the row levels of x.

Value

A matrix containing the coordinates of the cluster centers.

See Also

freq_ca.

Examples

SndT_Fra <- read.table(system.file("extdata", "SndT_Fra.txt", package = "svs"),
   header = TRUE, sep = "\t", quote = "\"", encoding = "UTF-8",
   stringsAsFactors = FALSE)
sca_SndT_Fra <- fast_sca(SndT_Fra)
kcl_SndT_Fra <- kmeans(sca_SndT_Fra$pos1, centers = 7)
centers_ca(sca_SndT_Fra$pos1, clusters = kcl_SndT_Fra, freq = freq_ca(SndT_Fra[, 1]))