
Uniformity trial of cotton
hutchinson.cotton.uniformity.Rd
Uniformity trial of cotton harvested in 1941
Usage
data("hutchinson.cotton.uniformity")
Format
A data frame with 2000 observations on the following 3 variables.
row
row ordinate
col
column ordinate
yield
yield per plant, grams
Details
The data are lint yield from single plants in a cotton uniformity trial in St. Vincent in 1940-41. The experiment was planted in 50 rows with 40 plants in each row. The spacing was 1.5 feet within rows and 4 feet between rows.
Field length: 40 plants * 1.5 feet = 60 feet
Field width: 50 columns * 4 feet = 200 feet
This data was made available with special help from the staff at Rothamsted Research Library.
Transcription details: Rothamsted library scanned the paper documents to pdf. K.Wright used the pdf to manually type the values into an Excel file and checked the hand-typed values. Plants marked as "Dead" on the PDF were left blank. There were 6 numbers that were illegible in the PDF. These were also left blank.