phrase: Declare a compound character to be a sequence of separate...

Description Usage Arguments Value Examples

View source: R/phrases.R

Description

Declares that a whitespace-separated expression consists of multiple patterns, separated by whitespace. This is typically used as a wrapper around pattern to make it explicit that the pattern elements are to be used for matches to multi-word sequences, rather than individual, unordered matches to single words.

Usage

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Arguments

x

the sequence, as a character object containing whitespace separating the patterns

Value

phrase returns a specially classed list whose white-spaced elements have been parsed into separate character elements.

is.phrase returns TRUE if the object was created by phrase; FALSE otherwise.

Examples

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# make phrases from characters
phrase(c("a b", "c d e", "f"))

# from a dictionary
phrase(dictionary(list(catone = c("a b"), cattwo = "c d e", catthree = "f")))

# from a collocations object
(coll <- textstat_collocations(tokens("a b c a b d e b d a b")))
phrase(coll)

quanteda documentation built on Nov. 2, 2018, 1:05 a.m.