<p>A subset of 500 hourly observations collected by the Norwegian
    Public Roads Administration at Alnabru in Oslo, Norway, between
    October 2001 and August 2003.</p>

datasets

A comprehensive package for structural multivariate
function estimation using smoothing splines.

Chong Gu

General Smoothing Splines

NO2 function

<p>A data frame containing 500 observations on the following variables.</p><table class="table">
<tr><td><code>no2</code></td><td>Concentration of NO2, on log scale.</td></tr>
<tr><td><code>cars</code></td><td>Traffic volume of the hour, on log scale.</td></tr>
<tr><td><code>temp</code></td><td>Temperature 2 meters above ground, in Celsius.</td></tr>
<tr><td><code>wind</code></td><td>wind speed, meters/second.</td></tr>
<tr><td><code>temp2</code></td><td>Temperature difference between 25 and 2 meters
	above ground, in Celsius.</td></tr>
<tr><td><code>wind2</code></td><td>Wind direction, in degrees between 0 and 360.</td></tr>
</table><p></p><p></p>

Format

Air Pollution and Road Traffic — NO2

<p>A data frame containing 500 observations on the following variables.</p><table class='table'>
<tr><td><code>no2</code></td><td>Concentration of NO2, on log scale.</td></tr>
<tr><td><code>cars</code></td><td>Traffic volume of the hour, on log scale.</td></tr>
<tr><td><code>temp</code></td><td>Temperature 2 meters above ground, in Celsius.</td></tr>
<tr><td><code>wind</code></td><td>wind speed, meters/second.</td></tr>
<tr><td><code>temp2</code></td><td>Temperature difference between 25 and 2 meters
	above ground, in Celsius.</td></tr>
<tr><td><code>wind2</code></td><td>Wind direction, in degrees between 0 and 360.</td></tr>
</table>



NO2: Air Pollution and Road Traffic

Description

Usage

Arguments

Format

`no2`	Concentration of NO2, on log scale.
`cars`	Traffic volume of the hour, on log scale.
`temp`	Temperature 2 meters above ground, in Celsius.
`wind`	wind speed, meters/second.
`temp2`	Temperature difference between 25 and 2 meters above ground, in Celsius.
`wind2`	Wind direction, in degrees between 0 and 360.