R: Data from a cabbage field trial

cabbages {MASS} | R Documentation

## Data from a cabbage field trial

### Description

The `cabbages` data set has 60 observations and 4 variables

### Usage

    cabbages

### Format

This data frame contains the following columns:

`Cult`
  Factor giving the cultivar of the cabbage, two levels: `c39` and `c52`.
`Date`
  Factor specifying one of three planting dates: `d16`, `d20` or `d21`.
`HeadWt`
  Weight of the cabbage head, presumably in kg.
`VitC`
  Ascorbic acid content, in undefined units.

### Source

Rawlings, J. O. (1988) Applied Regression Analysis: A Research Tool. Wadsworth and Brooks/Cole. Example 8.4, page 219. (Rawlings cites the original source as the files of the late Dr Gertrude M Cox.)

### References

Venables, W. N. and Ripley, B. D. (1999) Modern Applied Statistics with S-PLUS. Third Edition. Springer.

[Package MASS version 7.2-45 Index]