        3.2
#&gt;   4:          4.6         3.1
#&gt;   5:          5.0         3.6
#&gt;  ---                         
#&gt; 146:          6.7         3.0
#&gt; 147:          6.3         2.5
#&gt; 148:          6.5         3.0
#&gt; 149:          6.2         3.4
#&gt; 150:          5.9         3.0</div><div class='input'><span class='no'>iris</span> <span class='kw'>%&gt;%</span> <span class='fu'>select_dt</span>(<span class='fl'>1</span>:<span class='fl'>3</span>)</div><div class='output co'>#&gt;