 img"><img src="BchronCalibrate-3.png" alt="" width="700" height="433"></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [[2]]</span>
<span class="r-plt img"><img src="BchronCalibrate-4.png" alt="" width="700" height="433"></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [[3]]</span>
<span class="r-plt img"><img src="BchronCalibrate-5.png" alt="" width="700