Description Format Source References Examples

Contains 8000 2-d points, with 6 "natural" looking shapes, all of which have an sinusoid-like shape that intersects with each cluster. The data set was originally used as a benchmark data set for the Chameleon clustering algorithm (Karypis, Han and Kumar, 1999) to illustrate the a data set containing arbitrarily shaped spatial data surrounded by both noise and artifacts.

A data.frame with 8000 observations on the following 2 columns:

- X
a numeric vector

- Y
a numeric vector

Obtained from http://cs.joensuu.fi/sipu/datasets/

Karypis, George, Eui-Hong Han, and Vipin Kumar (1999).
Chameleon: Hierarchical clustering using dynamic modeling. *Computer*
32(8): 68-75.

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