phm (version 2.1.2)

phraseDoc: phraseDoc Creation

Description

Create an object of class phraseDoc. This will hold all principal phrases of a collection of texts that occur a minimum number of times, plus the texts they occur in and their position within those texts.

Usage

phraseDoc(
  text,
  ids = NULL,
  mn = 2,
  mx = 8,
  ssw = stopStartWords(),
  sew = stopEndWords(),
  sp = stopPhrases(),
  min.freq = 2,
  max.phrases = 1500,
  shiny = FALSE,
  silent = TRUE
)

Value

Object of class phraseDoc

Arguments

text

a character vector with each element the text of a document, or a corpus

ids

a character vector with identifiers for each text

mn

Minimum number of words in a phrase.

mx

Maximum number of words in a phrase.

ssw

A set of words no phrase should start with.

sew

A set of words no phrase should end with.

sp

A set of phrases to be excluded.

min.freq

The minimum frequency of phrases to be included.

max.phrases

Maximum number of phrases to be included.

shiny

TRUE if called from a shiny program. This will allow progress to be recorded on a progress meter; the function uses about 100 progress steps, so it should be created inside a withProgress function with the argument max set to at least 100.

silent

TRUE if you do not want progress messages.

Examples

tst=c("This is a test text",
      "This is a test text 2",
      "This is another test text",
      "This is another test text 2",
      "This girl will test text that man",
      "This boy will test text that man")
phraseDoc(tst)