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使用wordcloud2軟件包可以將wordcloud的任何單詞作爲點擊事件閃爍以便將其他對象綁定到它(例如bsModal)嗎?例如,通過生成可以從閃亮會話內訪問並保存事件數據(例如,點擊座標)的對象(https://plot.ly/r/shinyapp-linked-click/)來示意性地實現這一點。是否有可能用wordcloud2創建閃亮的點擊事件?
在下面的示例中,我想將bsModal綁定到wordcloud,以便顯示用戶單擊的單詞。
ui.R
library(shiny)
shinyUI(fluidPage(
mainPanel(
wordcloud2Output("wordcloud")
)
))
server.R
library(shiny)
library(wordcloud2)
library(tm)
shinyServer(function(input, output) {
words <- c ("1st", "2nd", "3rd", "4th", "5h", "6th", "7th", "8th", "9th", "10th", "11th", "12th", "13th", "14th", "15th", "16th", "17th", "18th", "19th", "20th",
"21st", "22nd", "23rd", "24th", "25th", "26th", "27th", "28th", "29th", "30th")
random_words <- sample(words, 500, replace = TRUE)
docs <- Corpus(VectorSource(random_words))
dtm <- TermDocumentMatrix(docs)
m <- as.matrix(dtm)
v <- sort(rowSums(m),decreasing=TRUE)
d <- data.frame(word = names(v),freq=v)
wordcloud_plot <- wordcloud2(data = d, size = 0.7, shuffle =FALSE, ellipticity = 1, minRotation = -pi/8, maxRotation = pi/8,
shape = 'circle')
output$wordcloud <- renderWordcloud2(wordcloud_plot)
})