">theta</span><span class="p">)</span>
  <span class="kt">REAL</span><span class="p">(</span><span class="n">rp</span><span class="p">),</span> <span class="k">INTENT</span><span class="p">(</span><span class="n">IN</span><span class="p">)</span> 	<span class="kd">::</span> <span class="n">R</span>
  <span class="c">!! R-coordinate of MH sampled location</span>
  <span class="kt">REAL</span><span class="p">(</span><span class="n">rp</span><span class="p">),</span> <span class="k">INTENT</span><span class="p