title: "Wordcloud2 introduction" date: "2016-06-09" output: html_document: highlight: kate toc: true toc_depth: 4 mathjax: null vignette: > %\VignetteIndexEntry{Introduction} %\VignetteEngine{knitr::rmarkdown} \usepackage[utf8]{inputenc}
This is an introduction to wordcloud2
package. This package provides an HTML5 interface to wordcloud for data visualization. Timdream's wordcloud2.js is used in this package.
This document show two main function in Wordcloud2
:
wordcloud2
: provide traditional wordcloud with HTML5letterCloud
: provide wordcloud with selected word(letters).You may have installed this package. Well, I still want to leave these codes here for installing.
require(devtools)
install_github("lchiffon/wordcloud2")
wordlcoud2
functionYou can use wordcloud directly:
library(wordcloud2)
wordcloud2(data = demoFreq)
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demoFreq
is a data.frame including word and freq in each column.
head(demoFreq)
## word freq
## oil oil 85
## said said 73
## prices prices 48
## opec opec 42
## mln mln 31
## the the 26
data
size
fontFamily
fontWeight
color
minSize
backgroundColor
gridSize
minRotation
maxRotation
rotateRatio
shape
ellipticity
figPath
widgetsize
wordcloud2(demoFreq, color = "random-light", backgroundColor = "grey")
wordcloud2(demoFreq, minRotation = -pi/6, maxRotation = -pi/6, minSize = 10,
rotateRatio = 1)
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For example, t.png
is A BIRD with black and white:
figPath = system.file("examples/t.png",package = "wordcloud2")
wordcloud2(demoFreq, figPath = figPath, size = 1.5,color = "skyblue")
letterCloud
functionletterCloud
provide the function to create a wordcloud with a word, like this:
letterCloud(demoFreq, word = "R", size = 2)
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Or:
letterCloud(demoFreq, word = "WORDCLOUD2", wordSize = 1)
preserveb3993a3f863d4dfb wordcloud with fig and letterCloud may disappeared in Rstudio Viewer, open into brower when you meet this bug
data
word
wordSize
letterFont
...
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