stand_quali {ClustVarLV}

Standardization of the qualitative variables

Description

pretreatment of qualitative variables

Usage

stand_quali(X.quali, metric = "chisq")

Arguments

X.quali

: a factor or a data frame with several factors

metric

: the metric to be used, i.e. each category is weighted by the inverse of the square-root of its relative frequency

Value

Xdisj.sd : a standardized matrix with as many columns as categories associated with the qualitative variables.