Klasterisasi kata sederhana

Text Mining dengan Bag-of-Words di R

Ted Kwartler

Instructor

Contoh klaster hirarkis

dist_rain <- dist(rain[, 2])

Contoh klaster hirarkis

Dendrogram sederhana

# Convert to hierarchical cluster obj
hc <- hclust(dist_rain)

# Plot dendrogram with city labels
plot(hc, labels = rain$city)

Dendrogram klaster

Estetika dendrogram

# Load dendextend package
library(dendextend)

# Convert distance matrix to dendrogram
hc <- hclust(tweets_dist)
hcd <- as.dendrogram(hc)

# Color branches
hcd <- branches_attr_by_labels(hcd, 
           c("marvin", "gaye"), "red")

# Plot dendrogram with some aesthetics
plot(hcd, main = "Better Dendrogram")
rect.dendrogram(hcd, k = 2, border = "grey50")

Estetika dendrogram

Ayo berlatih!

Text Mining dengan Bag-of-Words di R