A Clustering Method for Data in Cylindrical Coordinates

Table 2

Parameters estimated by the cyk-means, the fixed cyk-means, and the -means.

Method
cyk-means	1	200		7.523	0.9746	0.1942	0.5065	0.09417
	2	300		3.979	1.495	0.1492		0.1866
	3	400	1.986	12.69	0.4966	0.1004	1.005	0.1997
Fixed cyk-means	1	200.2		—	1.001	—	0.4995	—
	2	299.9		—	1.501	—		—
	3	400	1.996	—	0.4998	—	0.9995	—
-means	1	184.85		—	1.091	—	0.1871	—
	2	253.65		—	1.358	—		—
	3	461.5	1.704	—	0.4406	—	0.9477	—

The results are the mean of twenty runs on randomly generated initial values. is a cluster number. is the azimuth of the centroid of the th cluster. . The best estimations are bold.