nvenient way to compute the data needed for predicted values <em>at means</em> (or <em>at medians</em>), respecting the differences between factor and numeric variables.</li>
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<code><a href="reference/seq_range.html">seq_range()</a></code>, which generates a vector of <em>n</em> values based upon the range of values in a variable</li>
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<code><a href="reference/build_datalist.html">build_datalist()</a></code>, which generates a list of data frames from an input data frame and a specified set of repla