asets too large to fit in memory:</p>
<div class="sourceCode" id="cb8"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb8-1"><a href="#cb8-1" tabindex="-1"></a><span class="co"># Create a file-backed 4D dataset (not run in vignette)</span></span>
<span id="cb8-2"><a href="#cb8-2" tabindex="-1"></a>big_vec <span class="ot">&lt;-</span> <span class="fu">FileBackedNeuroVec</span>(</span>
<span id="cb8-3"><a href="#cb8-3" tabindex="-1"></a>  <span class="at">dims =</span> <span class="fu">c</spa