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]