g ethanol </h2>

<h3>Description</h3>

<p>Ethanol fuel was burned in a single-cylinder engine.  For various
settings of the engine compression and equivalence ratio, the
emissions of nitrogen oxides were recorded.
</p>


<h3>Usage</h3>

<pre><code class='language-R'>ethanol</code></pre>


<h3>Format</h3>

<p>A data frame with 88 observations on the following 3 variables.
</p>

<dl>
<dt>NOx</dt><dd><p>Concentration of nitrogen oxides (NO and NO2) in
micrograms/J.</p>
</dd>
<dt>C</dt><dd><p>Compression ratio 