Name:

Description:

The immer data frame has 30 rows and 5 columns. Five varieties of barley were grown in six locations in each of 1931 and 1932.

Variables:

This data frame contains the following columns:

Loc

The location.

Var

The variety of barley ("manchuria", "svansota", "velvet", "trebi" and "peatland").

Y1

Yield in 1931.

Y2

Yield in 1932.

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References/Notes/Attributions:

Source

Immer, F.R., Hayes, H.D. and LeRoy Powers (1934) Statistical determination of barley varietal adaptation. Journal of the American Society for Agronomy 26, 403–419.

Fisher, R.A. (1947) The Design of Experiments. 4th edition. Edinburgh: Oliver and Boyd.

References

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

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