om_qtr</code></td>
<td>
<p>(date in quarters) the dates contemporaneous to the prices in from_nominal_price. Must be of the form &quot;YYYY-Qq&quot; e.g. &quot;1066-Q2&quot;. Q1 = Mar, Q2 = Jun, Q3 = Sep, Q4 = Dec.</p>
</td></tr>
<tr valign="top"><td><code>to_qtr</code></td>
<td>
<p>(date in quarters) the date to be inflated to, where nominal price = real price. Must be of the form &quot;YYYY-Qq&quot; e.g. &quot;1066-Q2&quot;.</p>
</td></tr>
<tr valign="top"><td><code>adjustment</code></td>
<td>
<p>Should t