ex {ExpDes} | R Documentation |
Experiment about vines (not published) where one studied the effects of different fertilizers and harvest dates on the pH of grapes.
data(ex)
A data frame with 24 observations on the following 4 variables.
trat
a factor with levels A
B
dose
a numeric vector
rep
a numeric vector
resp
a numeric vector
Eric Batista Ferreira, eric.ferreira@unifal-mg.edu.br