glyp {pad}R Documentation

PAD - Glyphosate data

Description

The glyp data frame has 54 rows and 4 columns.

This data-set records the results of an experiment to investigate the relationship between root length of safflower plants and the concentration of glyphosate (a weed-killer) introduced into the water-supply.

Usage

data(glyp)

Format

This data frame contains the following columns:

conc
normal-bracket11bracket-normal
a numeric vector with glyphosate concentration in water supply a numeric vector with glyphosate concentration in water supply eqn
water
a factor with the type of water to which glyphosate was added: 1 destilled water, 2 tap water
replicate
a factor with levels corresponding to replicate experiment started on dates respectively. Note that control runs with zero glyphosate were also duplicated on each of the three dates.
length
a numeric vector with total root length of 15 safflower plants

Source

Supplid by Prof P. Diggle (Lancaster University, UK) from an experiment conducted by CSIRO Centre for Irrigation Research, Griffith, New South wales, Australia


[Package pad version 0.1-2 Index]