a>
<ul>
<li class="chapter" data-level="1.1" data-path="lesson-1.html"><a href="lesson-1.html#r在心理科学及社会科学中的运用"><i class="fa fa-check"></i><b>1.1</b> R在心理科学及社会科学中的运用</a>
<ul>
<li class="chapter" data-level="1.1.1" data-path="lesson-1.html"><a href="lesson-1.html#id_1-data-science"><i class="fa fa-check"></i><b>1.1.1</b> 数据科学</a></li>
<li class="chapter" data-level="1.1.2" data-path="lesson-1.html"><a href="lesson-1.html#id_1-data-science-born"><