-120"></a></h2>
<ul><li>Updates for handling repeated cross sections data, both estimation and inference</li></ul></div>
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<h2 class="page-header" data-toc-text="1.1.2" id="did-112">did 1.1.2<small>2018-09-11</small><a class="anchor" aria-label="anchor" href="#did-112"></a></h2>
<ul><li>bug fixes for testing without covariates, allowed to pass NULL in addition to ~1</li></ul></div>
    <div class="section level2">
<h2 class="page-header" data-toc-text="1.1.1" id="did-111">did 