agridat (version 1.27)

delgadillolopez.sesame.uniformity: A uniformity trial of sesame

Description

A uniformity trial of sesame in Nicaragua

Usage

data("delgadillolopez.sesame.uniformity")

Format

A data frame with 384 observations on the following 3 variables.

row

row ordinate

col

column ordinate

yield

yield, grams per plot

Details

A uniformity trial of sesame conducted in Managua, Nicaragua, in 1969.

Field width: 16 plots * 5 m = 80 m

Field length: 24 rows * 0.915 m = 21.96 m

Data provenance: Data appears in Delgadillo Lobez (1973) table 5. Typed by K.Wright. Table 6 shows 3-row subtotals that were used to correct some data values that were difficult to transcribe.

References

None

Examples

if (FALSE) {
  library(agridat)
  data(delgadillolopez.sesame.uniformity)
  dat <- delgadillolopez.sesame.uniformity

  require(desplot)
  desplot(dat, yield ~ col*row,
          flip=TRUE, tick=TRUE, aspect=(24*0.915)/(16*5),
          main="delgadillolopez.sesame.uniformity")

}