MUVR2 (version 0.1.0)

onehotencoding: One hot encoding

Description

Each factor and character variable with n categories(>2) will be transformed to n variables. Each factor and character variable with 2 categories will be transformed to one 01 numeric dummy variable. Each factor and character variable with 1 categories will be transformed to one numeric variable that only has value 1. Each factor and character variable with 0 categories will be transformed to one numeric variable that only has value -999. Each logical variable will be transformed to one 01 numeric dummy variable.

Usage

onehotencoding(X)

Value

matrix with all variables transformed to numeric variables

Arguments

X

data frame data with numeric, factor, character and/or logical variables

Examples

#To test the scenario when X has factor and character when using PLS
#add one factor and one character variable(freelive data X,
# which originally has 112 numeric samples and 1147 observations)
# factor variable has 3,6,5factors(nearzero variance), character variable has 7,4 categories
factor_variable1<-as.factor(c(rep("33",105),rep("44",3),rep("55",4)))
factor_variable2<-as.factor(c(rep("AB",20),rep("CD",10),rep("EF",30),
                          rep("GH",15),rep("IJ",25),rep("KL",12)))
factor_variable3<-as.factor(c(rep("Tessa",25),rep("Olle",30),rep("Yan",12),
                           rep("Calle",25),rep("Elisa",20)))
factor_variable4<-as.factor(c(rep(NA,112)))
character_variable1<-c(rep("one",16),rep("two",16),rep("three",16),
                      rep("four",16),rep("five",16),rep("six",16),rep("seven",16))
character_variable2<-c(rep("yes",28),rep("no",28),
                         rep("yes",28),rep("no",28))
character_variable3<-c(rep("Hahahah",112))
character_variable4<-as.character(c(rep(NA,112)))
logical_variable1<-c(rep(TRUE,16),rep(FALSE,16),rep(TRUE,16),
rep(FALSE,16),rep(TRUE,16),rep(FALSE,32))
logical_variable2<-c(rep(TRUE,28),rep(FALSE,28),rep(TRUE,28),rep(FALSE,28))

 X<-data.frame(row.names<-1:112)
 X<-cbind(X,XRVIP,
       factor_variable1,factor_variable2,factor_variable3,factor_variable4,
       character_variable1,character_variable2,character_variable3,character_variable4,
        logical_variable1,logical_variable2)
  onehotencoding(X)