extype" name="org.joda.time.DateTime">DateTime</span>], <a href="ScalarHelperOps.html" class="extype" name="org.saddle.scalar.ScalarHelperOps">ScalarHelperOps</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>], <a href="CouldBeNumber.html" class="extype" name="org.saddle.scalar.CouldBeNumber">CouldBeNumber</a>[<span class="extype" name="org.joda.time.DateTime">DateTime</span>], <a href="CouldBeOrdered.html" class="extype" name="org.saddle.scalar.CouldBeOrdered">CouldBeOrdered</a>[<span 