Comments on: Hierarchical K-Means Clustering: Optimize Clusters https://www.datanovia.com/en/lessons/hierarchical-k-means-clustering-optimize-clusters/ Data Mining and Statistics for Decision Support Fri, 21 Aug 2020 16:40:51 +0000 hourly 1 https://wordpress.org/?v=6.8.2 By: S3-T1 D'Amato https://www.datanovia.com/en/lessons/hierarchical-k-means-clustering-optimize-clusters/#comment-20920 Fri, 21 Aug 2020 16:40:51 +0000 https://www.datanovia.com/en/?post_type=dt_lessons&p=8078#comment-20920 how can I do a cluster validation analysis of the clusters obtained by hkmeans ?
I tried using fviz_silhouette, but I get an error message saying that hkmeans objects are not supported by fviz_silhouette.

]]> By: YURI COSTA https://www.datanovia.com/en/lessons/hierarchical-k-means-clustering-optimize-clusters/#comment-3809 Tue, 17 Dec 2019 16:30:15 +0000 https://www.datanovia.com/en/?post_type=dt_lessons&p=8078#comment-3809 Hello, I have a practical question. I need to classify salinity zones for the estuarine environment. There is a theoretical classification (Venice System) that defines four zones,
Euhalina (40 ~ 30),
Polyhalina (30 ~ 18),
Mesohalina (18 ~ 5),
Oligohalina (5 ~ 0.5).
I have data collected over the salinity gradient at different periods and would like to apply this classification to my ecosystems. In the real world, there is some overlap in tidal zone edges, but I still find it interesting to try to apply some clustering technique to these systems. What I imagine I need is an algorithm that classifies the zones of each system and that I provide the rating ranges. That is, I have points in space that have different salinity values ​​and I would like to group them according to a rule (based on intervals) defined by me. Would you have something to suggest me?

]]> By: kassambara https://www.datanovia.com/en/lessons/hierarchical-k-means-clustering-optimize-clusters/#comment-1534 Sat, 17 Nov 2018 07:03:58 +0000 https://www.datanovia.com/en/?post_type=dt_lessons&p=8078#comment-1534 In reply to Bryan Hutchinson.

Hi Bryan,

In the current version of factoextra, the hkmeans method is not implemented in the eclust() function.

I created an issue on github: https://github.com/kassambara/factoextra/issues/78

]]> By: Bryan Hutchinson https://www.datanovia.com/en/lessons/hierarchical-k-means-clustering-optimize-clusters/#comment-1533 Fri, 16 Nov 2018 14:16:27 +0000 https://www.datanovia.com/en/?post_type=dt_lessons&p=8078#comment-1533 Dear Alboukadel

If I were to use hierarchical k-means clustering, what function method should I use in the eclust function when doing cluster validation to initialise the function?

]]>