revenue</span>, <span class="va">analysis_date</span><span class="op">)</span></span>
<span class="r-in"></span>
<span class="r-in"><span class="co"># bar chart</span></span>
<span class="r-in"><span class="fu">rfm_bar_chart</span><span class="op">(</span><span class="va">rfm_order</span><span class="op">)</span></span>
<span class="r-plt img"><img src="rfm_bar_chart-1.png" alt="" width="700" height="433"></span>
<span class="r-in"></span>
</code></pre></div>
    </div>
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