title: R studio crashes while merge 2 data sets
body: <p>I am new to R , i am struggling to merge two data set. R studio crashes , i am using R in mac with 8gb of RAM. my data set are of 8 mb &amp; 12 mb.</p>
  
  <p>my code is :</p>
  
  <pre><code>data1 &lt;- read.csv("~/Downloads/1987.csv", stringsAsFactors=FALSE)
  View(data1)
  data2 &lt;- read.csv("~/Downloads/1988.csv", stringsAsFactors=FALSE)
  View(data2)
  merg_tab &lt;- merge(data1,data2)
  </code></pre>
  
  <p>after 5-10 min R studio crashes.</p>