Spread of a disease in cucumbers depends on climate and amount of
fertilizer. The amount of infection on standardized plants was
recorded after a number of days, and two plants were examined for
each combination of climate and dose.
Usage
data(cucumber)
Arguments
Format
A data frame with 12 observations on the following 3 variables.
disease
a numeric vector
climate
a factor with levels A (change to day temperature 3
hours before sunrise) and B (normal change to day temperature)