wordcloud_comparison: Internal function for textplot_wordcloud

Description

This function implements wordcloud that compares documents. Code is adopted from wordcloud::comparison.cloud().

Usage

wordcloud_comparison(
  x,
  min_size,
  max_size,
  min_count,
  max_words,
  color,
  font,
  adjust,
  rotation,
  random_order,
  random_color,
  ordered_color,
  labelcolor,
  labelsize,
  labeloffset,
  fixed_aspect,
  colors,
  scale,
  min.freq,
  max.words,
  random.order,
  rot.per,
  use.r.layout,
  title.size,
  ...
)

Arguments

x: a dfm or quanteda.textstats::textstat_keyness object
min_size: size of the smallest word
max_size: size of the largest word
min_count: words with frequency below min_count will not be plotted
max_words: maximum number of words to be plotted. The least frequent terms dropped. The maximum frequency will be split evenly across categories when comparison = TRUE.
color: colour of words from least to most frequent
font: font-family of words and labels. Use default font if NULL.
adjust: adjust sizes of words by a constant. Useful for non-English words for which R fails to obtain correct sizes.
rotation: proportion of words with 90 degree rotation
random_order: plot words in random order. If FALSE, they will be plotted in decreasing frequency.
random_color: choose colours randomly from the colours. If FALSE, the colour is chosen based on the frequency
ordered_color: if TRUE, then colours are assigned to words in order.
labelcolor: colour of group labels. Only used when comparison = TRUE.
labelsize: size of group labels. Only used when comparison = TRUE.
labeloffset: position of group labels. Only used when comparison = TRUE.
fixed_aspect: logical; if TRUE, the aspect ratio is fixed. Variable aspect ratio only supported if rotation = 0.
scale: deprecated argument
min.freq: deprecated argument
max.words: deprecated argument
random.order: deprecated argument
rot.per: deprecated argument
use.r.layout: deprecated argument
title.size: deprecated argument
...: additional parameters. Only used to make it compatible with wordcloud

Author

Kohei Watanabe, build on code from Ian Fellows's wordcloud package.