tilities</h1>
<p>Estimation of the propensity score is a fundamental aspect of the
estimation of individualized treatment rules (ITRs). The
<code>personalized</code> package offers support tools for construction
of the propensity score function used by the <code>fit.subgroup()</code>
function. The support is via the
<code>create.propensity.function()</code> function. This tool allows for
estimation of the propensity score in high dimensions via
<code>glmnet</code>. In high dimensions it can be important to 