R: Yields by growing conditions

Wheat {nlme} | R Documentation

## Yields by growing conditions

### Description

The `Wheat` data frame has 48 rows and 4 columns.

### Format

This data frame contains the following columns:

Tray

  an ordered factor with levels `3` < `1` < `2` < `4` < `5` < `6` < `8` < `9` < `7` < `12` < `11` < `10`

Moisture

  a numeric vector

fertilizer

  a numeric vector

DryMatter

  a numeric vector

### Source

Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York.

[Package nlme version 3.1-118 Index]