&gt;   3:          1.3         0.2
#&gt;   4:          1.5         0.2
#&gt;   5:          1.4         0.2
#&gt;  ---                         
#&gt; 146:          5.2         2.3
#&gt; 147:          5.0         1.9
#&gt; 148:          5.2         2.0
#&gt; 149:          5.4         2.3
#&gt; 150:          5.1         1.8</div><div class='input'><span class='no'>iris</span> <span class='kw'>%&gt;%</span> <span class='fu'>select_dt</span>(<span class='st'>"Pe"</span>,<span class='kw'>negate</span> <sp