agridat (version 1.20)

jones.corn.uniformity: Uniformity trial of corn.

Description

Uniformity trial of corn in Iowa in 2016.

Usage

data("jones.corn.uniformity")

Format

A data frame with 144 observations on the following 3 variables.

col

column ordinate

row

row ordinate

yield

yield, bu/ac

Details

This data corresponds to field "ISU.SE" in the paper by Jones.

Field width: 12 columns, 4.6 meters each.

Field length: 12 rows, 3 meters each.

Electronic version provided as an online supplement. The "row" and "col" variables in the supplement have been swapped for the presentation of the data here in order to be more consistent with the figures in the paper.

Used with permission of Marcus Jones.

References

None

Examples

# NOT RUN {
library(agridat)
data(jones.corn.uniformity)
dat <- jones.corn.uniformity
library(desplot)
# Compare to figure 5 of Jones et al.
desplot(dat, yield ~ col*row,
        aspect=(12*4.6)/(12*3),
        main="jones.corn.uniformity")
# }