title: Which library could be used to make a Chord diagram in R?
body: <p>Is there any package in cran which could plot a chord layout like this: (this visualization is also called <strong><em>chord diagram</em></strong>)</p>
  
  <p><img src="https://i.stack.imgur.com/6GdL4.png" alt="Chrod Diagramm"></p>