Arabidopsis {lme4} | R Documentation

## Arabidopsis clipping/fertilization data

### Description

Data on genetic variation in responses to fertilization and simulated herbivory in Arabidopsis

### Usage

    data("Arabidopsis")

### Format

A data frame with 625 observations on the following 8 variables.

`reg`

  region: a factor with 3 levels `NL` (Netherlands), `SP` (Spain), `SW` (Sweden)

`popu`

  population: a factor with the form `n.R` representing a population in region `R`

`gen`

  genotype: a factor with 24 (numeric-valued) levels

`rack`

  a nuisance factor with 2 levels, one for each of two greenhouse racks

`nutrient`

  fertilization treatment/nutrient level (1, minimal nutrients or 8, added nutrients)

`amd`

  simulated herbivory or "clipping" (apical meristem damage): `unclipped` (baseline) or `clipped`

`status`

  a nuisance factor for germination method (`Normal`, `Petri.Plate`, or `Transplant`)

`total.fruits`

  total fruit set per plant (integer)

### Source

From Josh Banta

### References

Joshua A. Banta, Martin H. H Stevens, and Massimo Pigliucci (2010) A comprehensive test of the 'limiting resources' framework applied to plant tolerance to apical meristem damage. Oikos 119(2), 359–369; http://dx.doi.org/10.1111/j.1600-0706.2009.17726.x

### Examples

    data(Arabidopsis)
    summary(Arabidopsis[,"total.fruits"])
    table(gsub("[0-9].","",levels(Arabidopsis[,"popu"])))
    library(lattice)
    stripplot(log(total.fruits+1) ~ amd|nutrient, data = Arabidopsis,
              groups = gen,
              strip=strip.custom(strip.names=c(TRUE,TRUE)),
              type=c('p','a'), ## points and panel-average value --
              ## see ?panel.xyplot
              scales=list(x=list(rot=90)),
              main="Panel: nutrient, Color: genotype")

[Package lme4 version 1.1-11 Index]