抓取臉書資料和文本清理
token ="EAACEdEose0cBABkL5HLxGnI2BpRdIF0eDdbjbfo2Cfws2HJTWZBAn5Yk8mgiJMpmugYAp24Ipa90llgyBpEaNxIrwnvkc2HEiR2M5mzrFTZC3wtCqUi6Pi1KYS8br22m2UstmNJOr4MRWcSYAuVkYvDHloAfaqMm9h78UIFnH8O7MMEJu62FdAhjY2VoQzlPxppnDGTwZDZD"
page.id = "152472278103133"
page = getPage(page.id, token, n = 300)
## 25 posts 50 posts 75 posts 100 posts 125 posts 150 posts 175 posts 200 posts 225 posts 250 posts 275 posts 300 posts
docs = Corpus(VectorSource(as.character(page[,3])))
toSpace = content_transformer(function(x,pattern){
return (gsub(pattern," ",x))
})
docs <- tm_map(docs, toSpace, "※")
docs <- tm_map(docs, toSpace, "◆")
docs <- tm_map(docs, toSpace, "‧")
docs <- tm_map(docs, toSpace, "的")
docs <- tm_map(docs, toSpace, "我")
docs <- tm_map(docs, toSpace, "也")
docs <- tm_map(docs, toSpace, "他")
docs <- tm_map(docs, toSpace, "是")
docs <- tm_map(docs, toSpace, "就")
docs <- tm_map(docs, toSpace, "你")
docs <- tm_map(docs, toSpace, "啊")
docs <- tm_map(docs, toSpace, "嗎")
docs <- tm_map(docs, toSpace, "啦")
docs <- tm_map(docs, toSpace, "要")
docs <- tm_map(docs, toSpace, "有")
docs <- tm_map(docs, toSpace, "及")
docs <- tm_map(docs, toSpace, "了")
docs <- tm_map(docs, toSpace, "在")
docs <- tm_map(docs, toSpace, "但")
docs <- tm_map(docs, toSpace, "都")
docs <- tm_map(docs, toSpace, "哈")
docs <- tm_map(docs, toSpace, "不")
docs <- tm_map(docs, toSpace, "與")
docs <- tm_map(docs, toSpace, "什麼")
docs <- tm_map(docs, toSpace, "一個")
docs <- tm_map(docs, toSpace, "們")
docs <- tm_map(docs, toSpace, "[a-zA-Z]")
docs <- tm_map(docs, removePunctuation)
docs <- tm_map(docs, removeNumbers)
docs <- tm_map(docs, stripWhitespace)
cutter = worker()
new_user_word(cutter,"一例一休")
## [1] TRUE
tokenizer = function(x) {
segment(x,cutter)
}
freqFrame = as.data.frame(table(unlist(lapply(docs,tokenizer))))
製作文字雲
par(family=("Heiti TC Light"))
wordcloud(freqFrame$Var1,freqFrame$Freq,
scale=c(5,0.1),min.freq=50,max.words=150,
random.order=TRUE, random.color=FALSE,
rot.per=.1, colors=brewer.pal(8, "Dark2"),
ordered.colors=FALSE,use.r.layout=FALSE,
fixed.asp=TRUE)
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## Warning in text.default(x1, y1, words[i], cex = size[i], offset = 0, srt =
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