First try at Day 7 HW

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>

<body>
  <script>
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
    
   data = d3.json("nations.json", function(error, data) {
			if (error) return error;
	console.log(data[0].income)	} )	// original data
  
   // scale for the years
   	var xScale = d3.scaleLog()
			.domain(1800, 2010)
			.range([0,960]);
   
   // scale for the income
	 var yScale = d3.scaleLinear()
			.domain([0, 100000])
			.range([500,0]);
     
    var line = d3.line()
    	.x(function(d) {return xScale(d[0])})
    	.y(function(d) {return yScale(d[1])})  
    
    console.log(line(data));
   
	svg.append("path")
		.datum(data) //.datum tells the computer to create ONE thing, vs plotting multiple circles
		.attr("d", line); //The shape of an SVG Path element is defined by one attribute: d

</script>
</body>

https://d3js.org/d3.v4.min.js