Package 'rslp'

Apply rules

Description

Apply rules

Usage

apply_rules(word, name, steprules)

Arguments

word	word to which you want to apply the rules
name	the rule name, possible values are: 'Plural', 'Feminine', 'Adverb', 'Augmentative', 'Noun', 'Verb', 'Vowel' .
steprules	steprules as obtained from the function extract_rules.

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Extract raw rules

Description

Separate the seven kinds of rules

Usage

extract_raw_rules(raw_rules)

Arguments

raw_rules

a charcter with the raw rules.

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Extract replacement rules

Description

Parses the the raw replacement rules.

Usage

extract_replacement_rules(raw_repl)

Arguments

raw_repl

the part with replacement rules for each step rule.

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Extract Rule Info

Description

Extract all info for one rule

Usage

extract_rule_info(rule)

Arguments

rule	the rule you want to extract infos

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Extract Rules from file

Description

This function parse the rules that are disponible in the RLSP package disponible in the RSLP C source. This file has been downloaded and is installed with the package. It's path can be found using system.file("steprules.txt", package = "rslp") A parsed version is saved is also installed with the package and its path can be found using system.file("steprules.rds", package = "rslp").

Usage

extract_rules(path = system.file("steprules.txt", package = "rslp"))

Arguments

path	path to the raw steprules. Most of the times you don't have to change it.

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Extract Rules Info

Description

Extract all info from all rules

Usage

extract_rules_info(rules)

Arguments

rules

rules parsed before by extract_rule_info

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Remove Acccents

Description

A wrappper for stringi package.

Usage

remove_accents(s)

Arguments

s	the string you want to remove accents

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RSLP

Description

Apply the Stemming Algorithm for the Portuguese Language to vector of words.

Usage

rslp(
  words,
  steprules = readRDS(system.file("steprules.rds", package = "rslp"))
)

Arguments

words	vector of words that you want to stem.
steprules	as obtained from the function extract_rules. (only define if you are certain about it). The default is to get the parsed versionof the rules installed with the package.

References

V. Orengo, C. Huyck, "A Stemming Algorithmm for the Portuguese Language", SPIRE, 2001, String Processing and Information Retrieval, International Symposium on, String Processing and Information Retrieval, International Symposium on 2001, pp. 0186, doi:10.1109/SPIRE.2001.10024

Examples

words <- c("gostou", "gosto", "gostaram")
rslp(words)

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RSLP_

Description

Apply the Stemming Algorithm for the Portuguese Language to a word.

Usage

rslp_(
  word,
  steprules = readRDS(system.file("steprules.rds", package = "rslp"))
)

Arguments

word	word to be stemmed.
steprules	as obtained from the function extract_rules.

---

RSLP Document

Description

Apply the Stemming Algorithm for the Portuguese Language to vector of documents. It extracts words using the regex "\b[:alpha:]\b"

Usage

rslp_doc(
  docs,
  steprules = readRDS(system.file("steprules.rds", package = "rslp"))
)

Arguments

docs	chr vector of documents
steprules	as obtained from the function extract_rules. (only define if you are certain about it). The default is to get the parsed version of the rules installed with the package.

References

V. Orengo, C. Huyck, "A Stemming Algorithmm for the Portuguese Language", SPIRE, 2001, String Processing and Information Retrieval, International Symposium on, String Processing and Information Retrieval, International Symposium on 2001, pp. 0186, doi:10.1109/SPIRE.2001.10024

Examples

docs <- c("coma frutas pois elas fazem bem para.")
rslp_doc(docs)

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Verify

Description

Given a list of suffixes, returns a vector of true or false indicating if the word has each one of the suffixes.

Usage

verify_sufix(word, rep_rules)

Arguments

word	word you which to verify replacement rules
rep_rules	data.frame of rules as specified in steprules$replacement_rule

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