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wonions

Yield-density relationship for White Imperial Spanish onion plants


Description

These data were colllected in a study of the relationship between the yield of White Imperial Spanish onion plants and the density of planting.

The variables are:

Density density of planting (plants/m^2)
Yield yield (g/plant)
Locality a code to indicate Purnong Landing (1) or Virginia (2)

The data were collected by I.S.Rogers (South Australian Dept. of Agriculture & Fisheries). They are listed in Ratkowsky (1983), Nonlinear Regression Modeling. Dekker, New York.


sm

Smoothing Methods for Nonparametric Regression and Density Estimation

v2.2-5.6
GPL (>= 2)
Authors
Adrian Bowman and Adelchi Azzalini. Ported to R by B. D. Ripley <ripley@stats.ox.ac.uk> up to version 2.0, version 2.1 by Adrian Bowman and Adelchi Azzalini, version 2.2 by Adrian Bowman.
Initial release
2018-09-27

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