用R语言来做词云
2019-09-16 本文已影响0人
柳叶刀与小鼠标
创建包
devtools::install_github("lchiffon/wordcloud2")
示例
library(wordcloud2)
wordcloud2(demoFreq, size = 1,shape = 'star')
image
wordcloud2(demoFreq, size = 2, minRotation = -pi/2, maxRotation = -pi/2)
image
wordcloud2(demoFreq, size = 2, minRotation = -pi/6, maxRotation = -pi/6,
rotateRatio = 1)
image
中文版本
## Sys.setlocale("LC_CTYPE","eng")
wordcloud2(demoFreqC, size = 2, fontFamily = "微软雅黑",
color = "random-light", backgroundColor = "grey")
image
通过 R-shiny来绘制交互性图片
library(shiny)
library(wordcloud2)
shinyApp(
ui=shinyUI(fluidPage(
#using default clicked word input id
wordcloud2Output("my_wc", width = "50%", height = "400px"),
#using custom clicked word input id
wordcloud2Output("my_wc2", width = "50%", height = "400px"),
verbatimTextOutput("print"),
verbatimTextOutput("print2")
)),
server=shinyServer(function(input,output,session){
figPath = system.file("examples/a.png",package = "wordcloud2")
output$my_wc = renderWordcloud2(wordcloud2(data = demoFreq, figPath = figPath, size = 0.4,color = "blue"))
output$my_wc2 = renderWordcloud2(wordcloud2(demoFreq))
#using default clicked word input id
output$print = renderPrint(input$my_wc_clicked_word)
#using custom clicked word input id
output$print2 = renderPrint(input$my_wc2_clicked_word)
})
)
run the above code and click refresh, it will work.
image发布于 2019-09-11