Arabidopsis: Arabidopsis clipping/fertilization data
In lme4: Linear Mixed-Effects Models using 'Eigen' and S4

Arabidopsis

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; \Sexpr[results=rd]{tools:::Rd_expr_doi("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")

lme4 documentation built on July 3, 2024, 5:11 p.m.