Data on life history traits for the
invasive California wild oat Avena barbata
Usage
oats
Format
A data frame with records for 821 plants.
Data are already in “long” format; no need to reshape.
resp
Response vector.
varb
Categorical. Gives node of graphical model corresponding
to each component of resp. See details below.
root
All ones. Root variables for graphical model.
id
Categorical. Indicates individual plants.
Plant.id
Categorical. Another indicator of individual plants.
Env
Categorical. Environment in which plant was grown, a
combination of experimental site and year.
Gen
Categorical. Ecotype of plant: mesic (M) or xeric (X).
Fam
Categorical. Accession, nested within ecotype.
Site
Categorical. Experiment site. Two sites in these data.
Year
Categorical. Year in which data were collected.
Four years in these data.
fit
Indicator (zero or one). Shorthand
for as.numeric(oats$varb == "Spike"). So-called because the
components of outcome indicated are the best surrogate of
Darwinian fitness in these data.
Details
The levels of varb indicate nodes of the graphical model to which
the corresponding elements of the response vector resp belong.
This is the typical “long” format produced by the R reshape
function. For each individual, there are several response variables.
All response variables are combined in one vector resp.
The variable varb indicates which “original” variable
the number was for. The variable id indicates which individual
the number was for. The levels of varb, which are the names
of the “original” variables are
Surv
Indicator (zero or one). Bernoulli, One if individual
survived to produce flowers.
Spike
Integer. Zero-truncated Poisson, number of spikelets
(compound floral structures) observed.