echinacea

Data on life history traits for the narrow-leaved purple coneflower
 Echinacea angustifolia

datasets

Aster models (Geyer, Wagenius, and Shaw, 2007,
<doi:10.1093/biomet/asm030>; Shaw, Geyer, Wagenius, Hangelbroek, and
Etterson, 2008, <doi:10.1086/588063>; Geyer, Ridley, Latta, Etterson,
and Shaw, 2013, <doi:10.1214/13-AOAS653>) are exponential family
regression models for life
history analysis. They are like generalized linear models except that
elements of the response vector can have different families (e. g.,
some Bernoulli, some Poisson, some zero-truncated Poisson, some normal)
and can be dependent, the dependence indicated by a graphical structure.
Discrete time survival analysis, life table analysis,
zero-inflated Poisson regression, and
generalized linear models that are exponential family (e. g., logistic
regression and Poisson regression with log link) are special cases.
Main use is for data in which there is survival over discrete time periods
and there is additional data about what happens conditional on survival
(e. g., number of offspring). Uses the exponential family canonical
parameterization (aster transform of usual parameterization).
There are also random effects versions of these models.

Charles J. Geyer

aster

Aster Models

echinacea function

A data frame with records for 570 plants observed over three years.<dl>
 <dt>ld02</dt>
<dd>Indicator of being alive in 2002.</dd> <dt>ld03</dt>
<dd>Ditto for 2003.</dd> <dt>ld04</dt>
<dd>Ditto for 2004.</dd> <dt>fl02</dt>
<dd>Indicator of flowering 2002.</dd> <dt>fl03</dt>
<dd>Ditto for 2003.</dd> <dt>fl04</dt>
<dd>Ditto for 2004.</dd> <dt>hdct02</dt>
<dd>Count of number of flower heads in 2002.</dd> <dt>hdct03</dt>
<dd>Ditto for 2003.</dd> <dt>hdct04</dt>
<dd>Ditto for 2004.</dd> <dt>pop</dt>
<dd>the remnant population of origin of the plant
 (all plants were grown together, <code>pop</code> encodes ancestry).</dd> <dt>ewloc</dt>
<dd>east-west location in plot.</dd> <dt>nsloc</dt>
<dd>north-south location in plot.</dd> 
</dl>

Format

Life History Data on Echinacea angustifolia — echinacea

A data frame with records for 570 plants observed over three years.<dl>
 <dt>ld02</dt>
<dd>Indicator of being alive in 2002.</dd>

 <dt>ld03</dt>
<dd>Ditto for 2003.</dd>

 <dt>ld04</dt>
<dd>Ditto for 2004.</dd>

 <dt>fl02</dt>
<dd>Indicator of flowering 2002.</dd>

 <dt>fl03</dt>
<dd>Ditto for 2003.</dd>

 <dt>fl04</dt>
<dd>Ditto for 2004.</dd>

 <dt>hdct02</dt>
<dd>Count of number of flower heads in 2002.</dd>

 <dt>hdct03</dt>
<dd>Ditto for 2003.</dd>

 <dt>hdct04</dt>
<dd>Ditto for 2004.</dd>

 <dt>pop</dt>
<dd>the remnant population of origin of the plant
 (all plants were grown together, <code>pop</code> encodes ancestry).</dd>

 <dt>ewloc</dt>
<dd>east-west location in plot.</dd>

 <dt>nsloc</dt>
<dd>north-south location in plot.</dd>

 
</dl>

echinacea: Life History Data on Echinacea angustifolia

Description

Usage

Arguments

Format

References

Examples