Data on life history traits for the purple coneflower Echinacea angustifolia
data(echinacea)
An object of class "asterdata"
(see asterdata
)
comprising records for 570 plants observed over three years.
Nodes of the graph for one individual are associated with the variables
(levels of the factor echinacea$redata$varb
)
Indicator of being alive in 2002. Bernoulli, predecessor the constant one.
Ditto for 2003. Bernoulli, predecessor ld02
.
Ditto for 2004. Bernoulli, predecessor ld03
.
Indicator of flowering 2002. Bernoulli,
predecessor ld02
.
Ditto for 2003. Bernoulli, predecessor ld03
.
Ditto for 2004. Bernoulli, predecessor ld04
.
Count of number of flower heads in 2002.
Zero-truncated Poisson, predecessor fl02
.
Ditto for 2003.
Zero-truncated Poisson, predecessor fl03
.
Ditto for 2004.
Zero-truncated Poisson, predecessor fl04
.
Covariates are
the remnant population of origin of the plant
(all plants were grown together, pop
encodes ancestry).
east-west location in plot.
north-south location in plot.
This is the data for the example in Geyer, Wagenius, and Shaw (2007).
These data were included in the R package aster
which was the
predecessor of this package as the dataset echinacea
.
Geyer, C. J., Wagenius, S., and Shaw, R. G. (2007) Aster Models for Life History Analysis. Biometrika 94 415--426.
data(echinacea)
names(echinacea)
names(echinacea$redata)
levels(echinacea$redata$varb)
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