beans: Bush beans data set

In AKitsche/statint: Generating labelled product type interaction contrasts

Description

This experiment was conducted to investigate the effect of row spacing on the yield of different varieties of bush beans. Due to the different growth habits of the considered varieties it was assumed that the spacing effect differs between the varieties. The selected four varieties differ such that "New Era" and "Big Green" form low, bushy plants and the two varieties "Little Gem" and "Red Lake" form erect plants with few branches. The chosen row spacings were of 20, 40 and 60 cm between rows. A randomized complete block design with four blocks and 12 plots per block was used. The yield of dried beans in kilograms per plot was determined after harvest time.

Usage

data(beans)

Format

A data frame with 48 observations on the following 4 variables.

Variety

a factor with levels BigGreen LittleGem NewEra RedLake, indicating the varieties of bush beans

Spacing

a numeric vector, indicating the row spacing

Block

a factor with levels I, II, III, IV, indicator variable for the 4 blocks

Yield

a numeric vector, indicating the yield of dried beans in kilograms per plot

Source

Petersen, R. G. (1985). Design and analysis of experiments, volume 66 of Statistics. Dekker, New York NY u.a.

Examples

data(beans)
str(beans) 

AKitsche/statint documentation built on May 5, 2019, 11:30 a.m.