="https://www.hec.usace.army.mil/software/hec-ssp/" class="external-link">HEC-SSP</a>. Returns a list of
   tibbles and plots.</p>
    </div>

    <div id="ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">compute_annual_frequencies</span><span class="op">(</span></span>
<span>  <span class="va">data</span>,</span>
<span>  dates <span class="op">=</span> <span class="va">Date</span>,</span>
<span>  values <span class="op">=</span> <span class="va">Value</span>,</