    1</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   lf024 lf025 lf026 lf027 lf028 lf029 lf030 lf031 lf032 lf033 lf034 lf035 lf036</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1    NA    NA    NA    NA    NA    NA    NA     1     1     1     1     0     1</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2    NA    NA    NA    NA    NA    NA    NA     1     1     1     1     0     1</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3     0     0     