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Name:

Classical N, P, K Factorial Experiment

Description:

A classical N, P, K (nitrogen, phosphate, potassium) factorial experiment on the growth of peas conducted on 6 blocks. Each half of a fractional factorial design confounding the NPK interaction was used on 3 of the plots.

Variables:

The npk data frame has 24 rows and 6 columns:

block: which block (label 1 to 6).
N: indicator (0/1) for the application of nitrogen.
P: indicator (0/1) for the application of phosphate.
K: indicator (0/1) for the application of potassium.
yield: Yield of peas, in pounds/plot (the plots were (1/70) acre).

Note

This dataset is also contained in R 3.0.2 and later.

Link To Google Sheets:

Rows:

Columns:

Files:

Classical N, P, K Factorial Experiment_1172_83.csv

License Type:

Public Domain (CC0)

References/Notes/Attributions:

Source

Imperial College, London, M.Sc. exercise sheet.

References

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

R Dataset Upload:

Use the following R code to directly access this dataset in R.

d <- read.csv("https://www.key2stats.com/Classical_N__P__K_Factorial_Experiment_1172_83.csv")