DiscriMiner (version 0.1-28)

withinSS: Within-class Sum of Squares Matrix

Description

Calculates within-class sum of squares and cross product matrix (a.k.a. within-class scatter matrix)

Usage

withinSS(variables, group)

Arguments

variables

matrix or data frame with explanatory variables (No missing values are allowed)

group

vector or factor with group memberships (No missing values are allowed)

See Also

withinCov, betweenSS, totalSS

Examples

# load iris dataset
  data(iris)

  # within-class scatter matrix
  withinSS(iris[,1:4], iris[,5])