wonions

<p>These data were collected in a study of the relationship between the
yield of White Imperial Spanish onion plants and the density of planting.</p>
<p>The variables are:</p><table class="table">
<tr><td><code>Density</code></td><td>density of planting (plants/m^2)</td></tr>
<tr><td><code>Yield</code></td><td>yield (g/plant)</td></tr>
<tr><td><code>Locality</code></td><td>a code to indicate Purnong Landing (1) or Virginia (2)</td></tr>
</table><p></p><p>
</p><p>The data were collected by I.S.Rogers (South Australian Dept. of Agriculture &amp; Fisheries).  They are listed in Ratkowsky (1983), Nonlinear Regression Modeling. Dekker, New York.</p>

regression

smooth

This is software linked to the book
'Applied Smoothing Techniques for Data Analysis -
The Kernel Approach with S-Plus Illustrations' Oxford University Press.

Adrian Bowman

Smoothing Methods for Nonparametric Regression and Density
Estimation

wonions function

<p>These data were collected in a study of the relationship between the
yield of White Imperial Spanish onion plants and the density of planting.</p>
<p>The variables are:</p><table class='table'>
<tr><td><code>Density</code></td><td>density of planting (plants/m^2)</td></tr>
<tr><td><code>Yield</code></td><td>yield (g/plant)</td></tr>
<tr><td><code>Locality</code></td><td>a code to indicate Purnong Landing (1) or Virginia (2)</td></tr>
</table>


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

wonions: Yield-density relationship for White Imperial Spanish onion plants

Description

Arguments

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