rotifer {MASS} | R Documentation |

## Numbers of Rotifers by Fluid Density

### Description

The data give the numbers of rotifers falling out of suspension for
different fluid densities. There are two species, `pm`

*Polyartha major*
and `kc`

,
*Keratella cochlearis*
and for each species the number falling out and the total number are given.

### Usage

rotifer

### Format

`density`

- specific density of fluid
`pm.y`

- number falling out for
*P. major*
`pm.total`

- total number of
*P. major*
`kc.y`

- number falling out for
*K. cochlearis*
`kc.tot`

- total number of
*K. cochlearis*

### Source

D. Collett (1991)
*Modelling Binary Data.*
Chapman & Hall.
p.217

[Package

*MASS* version 7.2-23

Index]