galaxy: Galaxy velocities

In dpmixsim: Dirichlet Process Mixture Model Simulation for Clustering and Image Segmentation

Description

This data set considers physical information on velocities (km/second) for 82 galaxies reported by Roeder (1990). These are drawn from six well-separated conic sections of the Corona Borealis region.

Usage

data(galaxy)

Format

A data frame with 82 observations on the following variable.

speed

a numeric vector giving the speed of galaxies ((km/second))

Source

Roeder, K. (1990) Density estimation with confidence sets exemplified by superclusters and voids in the galaxies, Journal of the American Statistical Association, 85: 617-624.

References

Escobar, M.D. and West, M. (1995) Bayesian Density Estimation and Inference Using Mixtures. Journal of the American Statistical Association, 90: 577-588.

Examples

data(galaxy)
## maybe str(galaxy) ; plot(galaxy) ...

Example output

Loading required package: oro.nifti
oro.nifti 0.9.1
Loading required package: cluster

dpmixsim documentation built on May 1, 2019, 7:29 p.m.