unnest_sentences_: Split a column of text into sentences

In lexRankr: Extractive Summarization of Text with the LexRank Algorithm

Description

Split a column of text into sentences

Usage

unnest_sentences_(tbl, output, input, doc_id = NULL,
  output_id = "sent_id", drop = TRUE)

unnest_sentences(tbl, output, input, doc_id = NULL,
  output_id = "sent_id", drop = TRUE)

Arguments

tbl	dataframe containing column of text to be split into sentences
output	name of column to be created to store parsed sentences
input	name of input column of text to be parsed into sentences
doc_id	column of document ids; if not provided it will be assumed that each row is a different document
output_id	name of column to be created to store sentence ids
drop	whether original input column should get dropped

Value

A data.frame of parsed sentences and sentence ids

Examples

df <- data.frame(doc_id = 1:3, 
                 text = c("Testing the system. Second sentence for you.", 
                          "System testing the tidy documents df.", 
                          "Documents will be parsed and lexranked."),
                 stringsAsFactors=FALSE)

unnest_sentences(df, sents, text)
unnest_sentences_(df, "sents", "text")

## Not run: 
library(magrittr)

df %>% 
  unnest_sentences(sents, text)

## End(Not run)

lexRankr documentation built on May 2, 2019, 1:29 p.m.