at Lake heights: 1918 - 2009
</h2>

<h3>Description</h3>

<p>Heights, stored as a multivariate time series, are for the lakes Erie,
Michigan/Huron, Ontario and St Clair
</p>


<h3>Usage</h3>

<pre><code class='language-R'>data(greatLakes)</code></pre>


<h3>Format</h3>

<p>The format is:
mts [1:92, 1:4] 174 174 174 174 174 ...
- attr(*, &quot;dimnames&quot;)=List of 2
..$ : NULL
..$ : chr [1:4] &quot;Erie&quot; &quot;michHuron&quot; &quot;Ontario&quot; &quot;StClair&quot;
- attr(*, &quot;tsp&quot;)= num [1: