re><pre class="codeoutput">
CP_ALS:
 Iter 10: f = 9.334888e-01 f-delta = 3.5e-03
 Iter 20: f = 9.604549e-01 f-delta = 1.9e-03
 Iter 30: f = 9.712518e-01 f-delta = 5.8e-04
 Iter 40: f = 9.741285e-01 f-delta = 1.4e-04
 Iter 50: f = 9.747733e-01 f-delta = 2.9e-05
 Iter 60: f = 9.749128e-01 f-delta = 6.4e-06
 Iter 70: f = 9.749430e-01 f-delta = 1.4e-06
 Iter 73: f = 9.749461e-01 f-delta = 8.8e-07
 Final f = 9.749461e-01 
</pre><h2 id="17">Control sign ambiguity of factor matrices</h2><p>The default behavior of 