>%&gt;%</span> <span class='fu'>select_dt</span>(<span class='no'>Sepal.Length</span>,<span class='no'>Sepal.Width</span>)</div><div class='output co'>#&gt;      Sepal.Length Sepal.Width
#&gt;   1:          5.1         3.5
#&gt;   2:          4.9         3.0
#&gt;   3:          4.7         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     