KMeans clustering and weighted centroid analysis

2016-06-07 19:58:32 +00:00
parent 21dd956c15
commit 4e86965f03
8 changed files with 166 additions and 0 deletions
--- a/src/pg/test/sql/05_kmeans_test.sql
+++ b/src/pg/test/sql/05_kmeans_test.sql
@@ -0,0 +1,6 @@
+\pset format unaligned
+\set ECHO all
+
+SELECT count(DISTINCT cluster_no) as clusters from cdb_crankshaft.cdb_kmeans('select * from ppoints', 2);
+
+SELECT count(*) clusters from cdb_crankshaft.cdb_WeightedMean( 'select *, code::INTEGER as cluster from ppoints' , 'value', 'cluster' );