ist_betas</span>, sigma <span class="op">=</span> <span class="fl">0.3</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># Define the policy object (choose between Contextual Epsilon Greedy, UCB Disjoint and Thompson Sampling)</span></span>
<span><span class="va">policy</span> <span class="op">&lt;-</span> <span class="fu">cramR</span><span class="fu">::</span><span class="va"><a href="../reference/BatchContextualEpsilonGreedyPolicy.html">BatchContextualEpsilonGreedyPolicy</a></spa