title: In a d3 scatterplot using data from a csv file, how do i draw lines connecting related points when the mouse is over a point?
body: <p>I am making a simple scatter plot and i want to use 2 other fields in my csv file (other than the fields i used for x and y axis)and connect them with a line between them when the mouse is over the point if they are related.  </p>
  
  <p>I have looked everywhere and cant find any help especially regarding csv data related fields. </p>