Counting How Many Cluster Index

2 次查看（过去 30 天）
Alvi Syahrin
Alvi Syahrin 2013-5-24
I am doing clustering with k-means, and here is the code:
[g c] = kmeans(data,k,'dist','SqEuclidean');
g is the cluster index
c is the centroid
k is the number of clusters, I input '3' in it.
When the code is executed, here is the sample result:
40 60 69 1
50 75 78 2
65 70 75 2
79 80 72 3
88 80 80 3
36 67 66 1
40 60 69 1
77 85 65 3
76 77 79 3
My question is, how to count the cluster index for each cluster? What script I should write to show this thing:
"Cluster1 has three members
Cluster2 has two members
Cluster3 has four members"
I'm getting confused because the cluster index only have one variable. Any idea?
Thank you.

请先登录，再回答此问题。

回答（1 个）

Tom Lane
Tom Lane 2013-5-24
Look at these, and see if it helps:
unique(g)
find(g==3)

类别

在 Help Center 和 File Exchange 中查找有关 Cluster Analysis and Anomaly Detection 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by