an class='kw'>=</span> <span class='fl'>2</span>:<span class='fl'>3</span>)</div><div class='output co'>#&gt;      Sepal.Width Petal.Length
#&gt;   1:         3.5          1.4
#&gt;   2:         3.0          1.4
#&gt;   3:         3.2          1.3
#&gt;   4:         3.1          1.5
#&gt;   5:         3.6          1.4
#&gt;  ---                         
#&gt; 146:         3.0          5.2
#&gt; 147:         2.5          5.0
#&gt; 148:         3.0          5.2
#&gt; 149:         3.4          5.4
#