The Ruspini data set, consisting of 75 points in four groups that is popular for illustrating clustering techniques.
A data frame with 75 observations on 3 variables giving the x and y coordinates of the points, respectively.
Source
E. H. Ruspini (1970) Numerical methods for fuzzy clustering. Inform. Sci. 2, 319–350.
References
see those in agnes.
Use the following R code to directly access this dataset in R.