fisher.latin {agridat} | R Documentation |

##
Latin square experiment on mangolds

### Description

Latin square experiment on mangolds. Used by R. A. Fisher.

### Usage

data("fisher.latin")

### Format

A data frame with 25 observations on the following 4 variables.

`trt`

treatment factor, 5 levels

`yield`

yield

`row`

row

`col`

column

### Details

Yields are root weights. Data originally collected by Mercer and
Hall as part of a uniformity trial.

This data is the same as the data from columns 1-5, rows 16-20, of the
mercer.mangold.uniformity data in this package.

Unsurprisingly, there are no significant treatment differences.

### Source

Mercer, WB and Hall, AD, 1911.
The experimental error of field trials
The Journal of Agricultural Science, 4, 107-132. Table 1.
http::/doi.org/10.1017/S002185960000160X

R. A. Fisher. *Statistical Methods for Research Workers*.

### Examples

library(agridat)
data(fisher.latin)
dat <- fisher.latin
# Standard latin-square analysis
m1 <- lm(yield ~ trt + factor(row) + factor(col), data=dat)
anova(m1)

[Package

*agridat* version 1.18

Index]