prim
Particle Physics Data

### Description

Particle physics data from Stanford University.

### Usage

    data(prim)

### Details

prim4
matrix of 500 experimental observations, with 4 parameters describing each.
prim9
matrix of 500 observations with 9 parameters describing each observation.
Source
Examples are believed to have been produced from work on the Prim-9 graphics system at Stanford Linear Accelerator. Probably related to the data cited in J. H. Friedman and J. W. Tukey, IEEE Transactions on Computing, C-23, 1974, pp. 881--889. If so, these are particle-scattering experiments, and the columns of the matrices represent some chosen set of parameters (energy, momentum, etc.) to describe the nuclear reactions.
Package Sdatasets version 6.1.5-18
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