A word cloud is a visual representation for text data, typically used to visualize free form text. This format is useful for quickly perceiving the most prominent terms and for locating a term alphabetically to determine its relative prominence.
A word cloud on most used statistical term from the description of 3177 available R packages in cran website.
Syntax -
install.packages("wordcloud")
install.packages("RColorBrewer")
require(wordcloud)
require(RColorBrewer)
docs<-c("here your text will appear")
#VectorSource could also be DataframeSource, DirSource, URISource, XMLSource
mycorpus<- Corpus(VectorSource(docs))
#if you are reading from .CSV file then use following syntax
#mycorpus<-read.csv(file.path(path, datafiles))
tdm <- TermDocumentMatrix(mycorpus)
m <- as.matrix(tdm)
v <- sort(rowSums(m),decreasing=TRUE)
d <- data.frame(word = names(v),freq=v)
pal <- brewer.pal(9,"BuGn")
#make the word cloud
wordcloud(dm$word, dm$freq, random.order=FALSE, colors=brewer.pal(8, "Dark2"))
