Create wordcloud by wordcloud2.js

Description

Function for Creating wordcloud by wordcloud2.js

Usage

wordcloud2(data, size = 1, minSize = 0, gridSize = 0,
fontFamily = 'Segoe UI', fontWeight = 'bold',
color = 'random-dark', backgroundColor = "white",
minRotation = -pi/4, maxRotation = pi/4, shuffle = TRUE,
rotateRatio = 0.4, shape = 'circle', ellipticity = 0.65,
widgetsize = NULL, figPath = NULL, hoverFunction = NULL)
Arguments

data
A data frame including word and freq in each column
size
Font size, default is 1. The larger size means the bigger word.
minSize
A character string of the subtitle
gridSize
Size of the grid in pixels for marking the availability of the canvas the larger the grid size, the bigger the gap between words.
fontFamily
Font to use.
fontWeight
Font weight to use, e.g. normal, bold or 600
color
color of the text, keyword 'random-dark' and 'random-light' can be used. color vector is also supported in this param
backgroundColor
Color of the background.
minRotation
If the word should rotate, the minimum rotation (in rad) the text should rotate.
maxRotation
If the word should rotate, the maximum rotation (in rad) the text should rotate. Set the two value equal to keep all text in one angle.
shuffle
Shuffle the points to draw so the result will be different each time for the same list and settings.
rotateRatio
Probability for the word to rotate. Set the number to 1 to always rotate.
shape
The shape of the "cloud" to draw. Can be a keyword present. Available presents are 'circle' (default), 'cardioid' (apple or heart shape curve, the most known polar equation), 'diamond' (alias of square), 'triangle-forward', 'triangle', 'pentagon', and 'star'.
ellipticity
degree of "flatness" of the shape wordcloud2.js should draw.
widgetsize
size of the widgets
figPath
The path to a figure used as a mask.
hoverFunction
Callback to call when the cursor enters or leaves a region occupied by a word. A string of java script function.
Examples

library(wordcloud2)

Global variables can go here

wordcloud2(demoFreq)
wordcloud2(demoFreq, size = 2)

wordcloud2(demoFreq, size = 1,shape = 'pentagon')
wordcloud2(demoFreq, size = 1,shape = 'star')

wordcloud2(demoFreq, size = 2,
color = "random-light", backgroundColor = "grey")

wordcloud2(demoFreq, size = 2, minRotation = -pi/2, maxRotation = -pi/2)
wordcloud2(demoFreq, size = 2, minRotation = -pi/6, maxRotation = -pi/6,
rotateRatio = 1)
wordcloud2(demoFreq, size = 2, minRotation = -pi/6, maxRotation = pi/6,
rotateRatio = 0.9)

wordcloud2(demoFreqC, size = 2,
color = "random-light", backgroundColor = "grey")
wordcloud2(demoFreqC, size = 2, minRotation = -pi/6, maxRotation = -pi/6,
rotateRatio = 1)

Color Vector

colorVec = rep(c('red', 'skyblue'), length.out=nrow(demoFreq))
wordcloud2(demoFreq, color = colorVec, fontWeight = "bold")

wordcloud2(demoFreq,
color = ifelse(demoFreq[, 2] > 20, 'red', 'skyblue'))