lass='kw'>=</span> <span class='st'>"obs1"</span>, <span class='kw'>r</span> <span class='kw'>=</span> <span class='fl'>30</span>, <span class='kw'>iows</span> <span class='kw'>=</span> <span class='fl'>0</span>,
    <span class='kw'>idpr</span> <span class='kw'>=</span> <span class='fl'>0</span>, <span class='kw'>rp</span> <span class='kw'>=</span> <span class='fu'>ifelse</span>(<span class='no'>idpr</span> <span class='kw'>==</span> <span class='fl'>0</span>, <span class='fl'>0</span>, <span class='fl'>0.