The
wheat
data frame is a spatial data set listing yields of grain
and straw from 500 plots of wheat laid out in 25 x 20 lattice covering
approximately 1 acre in total area.
The data were collected in 1910 at the Rothamsted Experimental Station
in England
(Mercer and Hall, 1911).
The data frame contains the following columns:
x
is 1 to 25.
y
is 1 to 20.
The data are from Mercer and Hall (1911).
Mercer, W. B. and Hall, A. D. (1911). The experimental error of field trials. Journal Agricultural Science (Cambridge), 4, 107-132.