Plankton: Abundance of types of plankton

Description Usage Format Source

Description

The Plankton dataset contains data from a study of plankton numbers. Four types of plankton were sampled in 12 hauls. The hauls can be regarded as blocks. The types of plankton are the treatments.

Usage

1

Format

A data frame with 48 observations on the following three variables:

Haul

a factor specifying the type of plankton.

Type

a factor specifying whether fumigants have been to control nematodes. It has two levels, Not fumigated and fumigated.

Number

a numerical vector recording the number of plankton.

Source

Snedecor, G.W. & Cochran, W.G. (1967) Statistical Methods (6th Edition), page 329.


VSNC/VSN-EDU documentation built on May 17, 2019, 10:11 p.m.