Root weights of tomato plants exposed to 4 different treatments

Description

The tomato data frame has 24 rows and 2 columns. They are from an experiment that exposed tomato plants to four different 'nutrients'.

Usage

data(tomato)

Format

This data frame contains the following columns:

weight

weight, in g

trt

a factor with levels water only, conc nutrient, 2-4-D + conc nutrient, 3x conc nutrient

Source

Dr Ron Balham, Victoria University of Wellington NZ, sometime in 1971 - 1976.

Examples

tomato.aov <- aov(log(weight) ~ trt, data=tomato)
fitted.values(tomato.aov)
summary.lm(tomato.aov)
tomato.aov <- aov(formula = weight ~ trt, data = tomato)
summary.lm(tomato.aov)