MESS (version 0.5.7)

picea: Ozone concentration damage to picea spruce

Description

Damage scores (ordinal scale) for Picea Sitchesis shoots at two dates, at four temperatures, and 4 ozone Levels

Format

An artificial data frame with 18 observations in each of three groups.

temp

temperature in degrees Celcius

conc

Ozone concentration at 4 different levels

damage

the damage score from 0-4, higher is more damage

count

The number of occurrences of this group

Examples

# NOT RUN {
data(picea)

# }