aircraft

<p>These data record six characteristics of aircraft designs which appeared
during the twentieth century.</p>
<p>The variables are:</p><table class="table">
<tr><td><code>Yr</code></td><td>year of first manufacture</td></tr>
<tr><td><code>Period</code></td><td>a code to indicate one of three broad time periods</td></tr>
<tr><td><code>Power</code></td><td>total engine power (kW)</td></tr>
<tr><td><code>Span</code></td><td>wing span (m)</td></tr>
<tr><td><code>Length</code></td><td>length (m)</td></tr>
<tr><td><code>Weight</code></td><td>maximum take-off weight (kg)</td></tr>
<tr><td><code>Speed</code></td><td>maximum speed (km/h)</td></tr>
<tr><td><code>Range</code></td><td>range (km)</td></tr>
</table><p></p><p>
</p><p>Source: The data were collected by P. Saviotti and are described in detail
	in Saviotti (1996), "Technological Evolution, Variety and Economy",
	Edward Elgar: Cheltenham.</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

aircraft function

<p>These data record six characteristics of aircraft designs which appeared
during the twentieth century.</p>
<p>The variables are:</p><table class='table'>
<tr><td><code>Yr</code></td><td>year of first manufacture</td></tr>
<tr><td><code>Period</code></td><td>a code to indicate one of three broad time periods</td></tr>
<tr><td><code>Power</code></td><td>total engine power (kW)</td></tr>
<tr><td><code>Span</code></td><td>wing span (m)</td></tr>
<tr><td><code>Length</code></td><td>length (m)</td></tr>
<tr><td><code>Weight</code></td><td>maximum take-off weight (kg)</td></tr>
<tr><td><code>Speed</code></td><td>maximum speed (km/h)</td></tr>
<tr><td><code>Range</code></td><td>range (km)</td></tr>
</table>


<p>Source: The data were collected by P. Saviotti and are described in detail
	in Saviotti (1996), "Technological Evolution, Variety and Economy",
	Edward Elgar: Cheltenham.</p>

aircraft: These data record six characteristics of aircraft designs which appeared during the twentieth century

Description

Arguments

`Yr`	year of first manufacture
`Period`	a code to indicate one of three broad time periods
`Power`	total engine power (kW)
`Span`	wing span (m)
`Length`	length (m)
`Weight`	maximum take-off weight (kg)
`Speed`	maximum speed (km/h)
`Range`	range (km)