bdp4R: Big Data Preprocessing For R

Description Usage Arguments Format Details Inherit Methods Public fields See Also

This class allows you to preprocess the data of an instance to find the hashtags that are in it. Optionally, you can decide whether to remove the data hashtags or not.

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FindHashtagPipe$new(propertyName = "hashtag",
                     alwaysBeforeDeps = list(),
                     notAfterDeps = list())

`propertyName`	(character) Name of the property associated with the pipe.
`alwaysBeforeDeps`	(list) The dependences alwaysBefore (pipes that must be executed before this one).
`notAfterDeps`	(list) The dependences notAfter (pipes that cannot be executed after this one).

An object of class R6ClassGenerator of length 24.

The regular expression indicated in the hashtagPattern variable is used to identify hashtags.

The pipe will invalidate the instance in the moment that the resulting data is empty.

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

pipe Function that preprocesses the instance to obtain/remove the hashtags.
- Usage
  
  pipe(instance, removeHashtag = TRUE)
- Value
  
  The instance with the modifications that have occurred in the pipe.
- Arguments
  - instance (Instance) Instance to preproccess.
  - removeHashtag (logical) Indicates if the hashstags are replaced.
findHashtag Function that find the hashtags in the data.
- Usage
  
  findHashtag(data)
- Value
  
  List with hashtags found.
- Arguments
  - data (character) Text in which the hashtags are searched.
removeHashtag Function that removes the hashtags in the data.
- Usage
  
  removeHashtag(data)
- Value
  
  The data with hashtags removed.
- Arguments
  - data (character) Text in which hashtags will be removed.