[R] R examples in Agronomy

William Michels wjm1 @end|ng |rom c@@@co|umb|@@edu
Wed Jun 13 18:34:07 CEST 2018


For introductory material there is--of course--Immer's Barley Data
(popularized by Bill Cleveland), and used extensively in R to
demonstrate lattice graphics:


Note the example dotplot() at the bottom of the "barley" help page,
and also on the "barchart" help page. The citation is included, and
there is also other commentary online:

Immer, R. F., H. K. Hayes, and LeRoy Powers. (1934). Statistical
Determination of Barley Varietal Adaptation.  Journal of the American
Society of Agronomy, 26, 403–419.
Wright, Kevin (2013). Revisiting Immer's Barley Data. The American
Statistician, 67(3), 129–133.

For a more extensive collection of agronomic data, take a look at the
"agridat" package. There's a nice vignette as well.




William Michels, Ph.D.

On Wed, Jun 13, 2018 at 5:56 AM, Khaled Ibrahimi
<ibrahimi.isacm using gmail.com> wrote:
> Dear all,
> Are there good R stat examples in the field of agronomy (especially field
> experiments)?
> Thanks
> ----------------------------------------/-----------------------------------------
> Khaled IBRAHIMI, PhD
> Assistant Professor, Soil Science & Environment
> Higher Institute of Agricultural Sciences of Chott-Mariem
> The University of Sousse, Tunisia
> Tel.: 216 97 276 835
> Email: ibrahimi.isacm using gmail.com
>         [[alternative HTML version deleted]]
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> and provide commented, minimal, self-contained, reproducible code.

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