UnsplashのWolfgang Hasselmannが撮影した写真
This post is following of the above post.
In this post, I will do hierarchical clustering using R. It is very easi with R.
Firstly, I make a matrix for hierarchical clustering.
Then, I use dist() function to calculate each observations distance.
Next, I use hclust() function to fo hierarchical clustering
All right, let's plot the results.
I see LUX is very different from others.
Now, let's divide 3 clusters, I mean like below.
I use cutree() function.
You see LUX is 3, JPN is 1 and KOR is 2.
So, 3 is blue, 1 is red and 2 is green.
Then, let's see scatter plot and check hierarchical clustering is good or bad.
Nice! We see hierarchical clustering worked well.
That's it. Thank you!
To read from the 1st post,
