February 20, 2018 Software Open Access

Julia Silge; David Robinson; Colin Fay; Kenneth Benoit; Jim Hester; Sean Kross; Jon Calder; James Keirstead; Dave Childers; Arfon Smith; Amelia McNamara

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    <subfield code="a">&lt;ul&gt;
&lt;li&gt;&lt;code&gt;unnest_tokens&lt;/code&gt; can now unnest a data frame with a list column (which formerly threw the error &lt;code&gt;unnest_tokens expects all columns of input to be atomic vectors (not lists)&lt;/code&gt;). The unnested result repeats the objects within each list. (It's still not possible when &lt;code&gt;collapse = TRUE&lt;/code&gt;, in which tokens can span multiple lines).&lt;/li&gt;
&lt;li&gt;Add &lt;code&gt;get_tidy_stopwords()&lt;/code&gt; to obtain stopword lexicons in multiple languages in a tidy format.&lt;/li&gt;
&lt;li&gt;Add a dataset &lt;code&gt;nma_words&lt;/code&gt; of negators, modals, and adverbs that affect sentiment analysis (#55).&lt;/li&gt;
&lt;li&gt;Updated various vignettes/docs/tests so package can build on R-oldrel.&lt;/li&gt;
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