LabelEncoder.fit: LabelEncoder.fit fits a LabelEncoder object

In CatEncoders: Encoders for Categorical Variables

Description

LabelEncoder.fit fits a LabelEncoder object

Usage

LabelEncoder.fit(y)

Arguments

y	A vector of characters, factors, or numerics, which can include NA as well

Value

Returns an object of S4 class LabelEncoder.

Examples

# factor y
y <- factor(c('a','d','e',NA),exclude=NULL)
lenc <- LabelEncoder.fit(y)
# new values are transformed to NA
z <- transform(lenc,factor(c('d','d',NA,'f')))
print(z)

# character y
y <- c('a','d','e',NA)
lenc <- LabelEncoder.fit(y)
# new values are transformed to NA
z <- transform(lenc,c('d','d',NA,'f'))
print(z)

# numeric y
set.seed(123)
y <- sample(c(1:10,NA),5)
lenc <- LabelEncoder.fit(y)
# new values are transformed to NA
z <-transform(lenc,sample(c(1:10,NA),5))
print(z)

Example output

Attaching package: 'CatEncoders'

The following object is masked from 'package:base':

    transform

[1]  2  2 NA NA
[1]  3  3  1 NA
[1] NA NA NA NA  2

CatEncoders documentation built on May 1, 2019, 6:29 p.m.