stand_quali | R Documentation |
pretreatment of qualitative variables
stand_quali(X.quali, metric = "chisq")
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 |
Xdisj.sd : a standardized matrix with as many columns as categories associated with the qualitative variables.
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