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SOUP (version 1.1)

.dummyze: From Factor To Dummy Variables

Description

Transform a factor or a factor-like vector of character into a matrix of dichotomous dummy variables

Usage

.dummyze(x)

Arguments

x
factor, character or integer to be dummyzed

Value

a matrix of {-1, 0, 1} of dimension length(x) $x$ G where G is the number of levels (distinct values) of the factor (vector)