mangold: Mangold

In clayford/dvdata: Data Files for Design and Analysis of Experiments (Dean & Voss)

Description

An experiment to investigate the effects of five different fertilizers on the growth of mangold roots. (Chapter 13, Table 13.11)

Usage

mangold

Format

A data frame with 32 rows and 7 variables:

BLOCK

experimental area

A

sulphate of ammonia - 2 levels (0 and 0.6 cwt per acre)

B

superphosphate - 2 levels (0 and 0.5 cwt per acre)

C

muriate of potash - 2 levels (0 and 1.0 cwt per acre)

D

agricultural salt - 2 levels (0 and 5 cwt per acre)

E

dung - 2 levels (0 or 10 tons per acre)

Y

yield of mangold roots in pounds

Source

http://www.wright.edu/~dan.voss/bookdata/data.html

References

Dean, A. and Voss, D. (1999). Design and Analysis of Experiments. New York, Springer.

clayford/dvdata documentation built on May 13, 2019, 7:38 p.m.