cochran.beets: Yield and number of plants in a sugarbeet fertilizer experiment
Description
Yield and number of plants in a sugarbeet fertilizer experiment.
Usage
data("cochran.beets")
Arguments
Format
A data frame with 42 observations on the following 4 variables.
fert
fertilizer treatment
block
block
yield
yield (tons/acres)
plants
number of plants per plot
Details
Yield (tons/acre) and number of beets per plot. Fertilizer
treatments combine superphosphate (P), muriate of potash (K),
and sodium nitrate (N).
References
H. Fairfield Smith (1957).
Interpretation of Adjusted Treatment Means and Regressions in Analysis
of Covariance.
Biometrics, 13, 282-308.
http://doi.org/10.2307/2527917