timation_end <span class='op'>=</span> <span class='fu'><a href='https://rdrr.io/r/base/as.Date.html'>as.Date</a></span><span class='op'>(</span><span class='st'>"2020-03-13"</span><span class='op'>)</span><span class='op'>)</span>
<span class='op'>}</span>
<span class='co'>## The result of the code above is equivalent to:</span>
<span class='fu'><a href='https://rdrr.io/r/utils/data.html'>data</a></span><span class='op'>(</span><span class='va'>rates</span>, <span class='va'>rates_indx</span><span class='o