td><strong>functionality</strong></td></tr><tr><td><code>pcp_x</code>, <code>pcp_y</code></td><td>values for the mappings to x and y axes</td></tr><tr><td><code>pcp_yend</code></td><td>vertical endpoint of a line segment</td></tr><tr><td><code>pcp_class</code></td><td>type of each of the input variables</td></tr><tr><td><code>pcp_level</code></td><td>preserves order of levels in categorical variables</td></tr><tr><td><code>pcp_id</code></td><td>identifier for each observation</td></tr></table><p>The dimensi