R: Data of corn

corn {agricolae} | R Documentation

## Data of corn

### Description

Data from a completely randomized design where four different methods of growing corn resulted in various yields per acre on various plots of ground where the four methods were tried. Ordinarily, only one statistical analysis is used, but here we will use the kuskal-wallis test so that a rough comparison may be made with the mediasn test.

### Usage

    data(corn)

### Format

A data frame with 34 observations on the following 3 variables.

`method`

  a numeric vector

`observation`

  a numeric vector

`rx`

  a numeric vector

### Details

The observations are ranked from the smallest, 77, of rank 1 to the largest 101, of rank N=34. Ties values receive the averarge rank.

### Source

Book: Practical Nonparametric Statistics.

### References

Practical Nonparametrics Statistics. W.J. Conover. Third Edition, 1999.

### Examples

    data(corn)
    str(corn)

[Package agricolae version 1.2-6 Index]