text: # d3 package
  var fs = require("fs");
  var d3 = require("d3");
  var _ = require("lodash");
  //read in the animals file
  fs.readFile("data/animals.tsv", "utf8", function(error, data) {
    	data = d3.tsv.parse(data);
  
  //display on screen
  console.log(JSON.stringify(data));
  	//compute the maximum weight
  var maxWeight = d3.max(data, function(d) { return d.avg_weight; });
  //display the max on screen
  console.log(maxWeight);
  });
  