/span>
<span><span class="st">     I4T2 | i4*t1</span></span>
<span><span class="st">     I5T1 | i5*t1</span></span>
<span><span class="st">     I5T2 | i5*t1</span></span>
<span><span class="st">     I6T1 | i6*t1</span></span>
<span><span class="st">     I6T2 | i6*t1</span></span>
<span><span class="st">     # estimate mean of F1, but fix mean of F2</span></span>
<span><span class="st">     F1 ~ 1</span></span>
<span><span class="st">     F2 ~ 0*1</span></span>
<span><span class="st">            "</span></s