he middle of sequences declared using the
<code>c(...)</code> notation., as well as between the comma following a
sequence definition and the dimensionality declaration. For example,
the following declaration of a <span class="math inline">\(2 \times 2 \times 3\)</span> array is valid.</p>
<pre><code>y &lt;-
structure(c(1,2,3,
4,5,6,7,8,9,10,11,
12), .Dim = c(2,2,
3))</code></pre>
<p>Because there are no decimal points in the values, the resulting dump
file may be used for three-dimensional array variables 