topic Re: What linkange method does SAS EM use? in SAS Data Science

What linkage method does SAS EM use?

Moalosi — Tue, 06 Feb 2024 12:27:30 GMT

Hi all i want to ask which linkage method does the similarity node use when performing a basic hierarchical clustering?. Thank you for your help.

Re: What linkange method does SAS EM use?

JosvanderVelden — Tue, 06 Feb 2024 11:10:45 GMT

You might not find the information you are looking for in the following papers. They do, however, provide some background. https://support.sas.com/resources/papers/proceedings11/160-2011.pdf & https://support.sas.com/resources/papers/proceedings/proceedings/sugi30/080-30.pdf

Re: What linkage method does SAS EM use?

Moalosi — Tue, 06 Feb 2024 12:28:12 GMT

Thank you for your response Josvander, but i have read the articles you provided and they do not provide me the answer i need.

Re: What linkage method does SAS EM use?

sbxkoenk — Tue, 06 Feb 2024 16:06:36 GMT

Are you talking about Time Series Similarity Node??

@taiyeong should know as he developed that node.

(due to @-mentioning him he will be notified)

Home > SAS Communities Library > Tip: Getting started with Time Series Clustering
Tip: Getting started with Time Series Clustering
https://communities.sas.com/t5/SAS-Communities-Library/Tip-Getting-started-with-Time-Series-Clustering/ta-p/257997

Because the TS Similarity node gives you the option to export a distance matrix, you can use any EM clustering node for clustering time series. Or you can use PROC CLUSTER in a SAS code node with any linkage method you like.

Koen

Re: What linkage method does SAS EM use?

Moalosi — Tue, 06 Feb 2024 16:28:15 GMT

Yes i am refering to the similarity node. As the properties do not show
which linkage is used.