bdpar (version 3.1.0)

ToLowerCasePipe: Class to convert the data field of an Instance to lower case

Description

Class to convert the data field of an Instance to lower case.

Inherit

This class inherits from GenericPipe and implements the pipe abstract function.

Super class

bdpar::GenericPipe -> ToLowerCasePipe

Methods

Public methods

• ToLowerCasePipe$new()

• ToLowerCasePipe$pipe()

• ToLowerCasePipe$toLowerCase()

• ToLowerCasePipe$clone()

Inherited methods

• bdpar::GenericPipe$getAlwaysBeforeDeps()
• bdpar::GenericPipe$getNotAfterDeps()
• bdpar::GenericPipe$getPropertyName()
• bdpar::GenericPipe$hash()
• bdpar::GenericPipe$setAlwaysBeforeDeps()
• bdpar::GenericPipe$setNotAfterDeps()
• bdpar::GenericPipe$setPropertyName()

---

Method new()

Creates a ToLowerCasePipe object.

Usage

ToLowerCasePipe$new(
  propertyName = "",
  alwaysBeforeDeps = list(),
  notAfterDeps = list()
)

Arguments

propertyName

A character value. Name of the property associated with the GenericPipe.

alwaysBeforeDeps

A list value. The dependencies alwaysBefore (GenericPipes that must be executed before this one).

notAfterDeps

A list value. The dependencies notAfter (GenericPipes that cannot be executed after this one).

---

Method pipe()

Preprocesses the Instance to convert the data to lower case.

Usage

ToLowerCasePipe$pipe(instance)

Arguments

instance

A Instance value. The Instance to preprocess.

Returns

The Instance with the modifications that have occurred in the pipe.

---

Method toLowerCase()

Converts the data to lower case

Usage

ToLowerCasePipe$toLowerCase(data)

Arguments

data

A character value. Text to preprocess.

Returns

The data in lower case.

---

Method clone()

The objects of this class are cloneable with this method.

Usage

ToLowerCasePipe$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

See Also

AbbreviationPipe, ContractionPipe, File2Pipe, FindEmojiPipe, FindEmoticonPipe, FindHashtagPipe, FindUrlPipe, FindUserNamePipe, GuessDatePipe, GuessLanguagePipe, Instance, InterjectionPipe, MeasureLengthPipe, GenericPipe, ResourceHandler, SlangPipe, StopWordPipe, StoreFileExtPipe, TargetAssigningPipe, TeeCSVPipe