Example 5: Using Scale Output in KMeans - Aster Analytics

Teradata Aster® Analytics Foundation User GuideUpdate 2

Product
Aster Analytics
Release Number
7.00.02
Published
September 2017
Language
English (United States)
Last Update
2018-04-17
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uce1497542673292.ditamap
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dita:id
B700-1022
Product Category
Software

This example uses the Scale function to scale data (using the maxabs method) before inputting it to the function KMeans, which outputs the centroids of the clusters in the data set. (Background explains the reason for scaling data before inputting it to a distance-based analysis function like KMeans.)

See Normalizing the Input Variables for an example of using Scale functions to convert input variables into z-scores for use with the Principal Components Analysis (PCA) functions.