UpdateStopwords: Update stopword lists with new words.

In mobilizingcs/MobilizePrime: Simple functions for Mobilize

Description

An easy way to update stopword lists with new words. Either update preloaded stopwords lists, i.e. "en" or "SMART" or update your own custom stopwords list.

Usage

UpdateStopwords(words, stopword.set = "en")

Arguments

words	a vector of words, formatted as strings, to add to the 'stopword.set'.
stopword.set	choose a preloaded stopwords list, i.e. "en" (default) or "SMART" or a vector of custom stopwords.

Author(s)

Amelia McNamara, James Molyneux

Examples

## Example using the "en" stopword list
data("crude")   # Load text data
WordFreqTable(crude, top = 10)    # Notice the top 10 words

crude <- ProcessText(crude, removestopwords = TRUE)   # Remove the "en" stopwords
WordFreqTable(crude, top = 10)    # Notice the new top 10 words

WordsToInclude <- c("said", "mln", "bpd", "dlrs")    # Words we want to include in our stoplist
UpdatedStopwords <- UpdateStopwords(words = WordsToInclude)   # Add words to "en" stoplist
crude <- ProcessText(crude, stopwords.list = UpdatedStopwords, removestopwords = TRUE)
WordFreqTable(crude, top = 10)    # Notice the new top 10 words


## Example using the "SMART" stopword list
data("crude")   # Load text data
WordFreqTable(crude, top = 10)    # Notice the top 10 words

crude <- ProcessText(crude, stopwords.list = stopwords("SMART"), removestopwords = TRUE)   # Remove the "SMART" stopwords
WordFreqTable(crude, top = 10)    # Notice the new top 10 words

WordsToInclude <- c("mln", "bpd", "dlrs")    # Words we want to include in our stoplist
UpdatedStopwords <- UpdateStopwords(words = WordsToInclude, stopword.set = "SMART")   # Add words to "SMART" stoplist
crude <- ProcessText(crude, stopwords.list = UpdatedStopwords, removestopwords = TRUE)
WordFreqTable(crude, top = 10)    # Notice the new top 10 words

mobilizingcs/MobilizePrime documentation built on May 23, 2019, 5:07 a.m.