oefening groups axes

forked from GeoJonna's block: oefening scales https://www.youtube.com/watch?v=SYuFy1j8SGs

<!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; }
    circle{fill:steelblue}
  </style>
</head>

<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
   
    var	dataArray = [120,40,5,100];
    var width = 500;
    var height = 500;
    
    var widthScale = d3.scaleLinear()
    				.domain([0,d3.max(dataArray)])
            .range([0,width]);

//     var ball = svg.selectAll("circle")
//     	.data(dataArray)
//     	.enter()
//     		.append("circle")
//     		.attr("r",20)
//     		.attr("cx",function(d){return *10})
// 				.attr("cy",function(d, i){return i*100});
    
//     var set=d3.set([1,2,3]);
  
//     var circle = svg.append("circle")
//       .attr("cx", 50)
// //   	  .attr("r", 20)
// 	  var circle = svg.append("circle")
//       .attr("cx", 100) 
//     var circle = svg.append("circle")
//       .attr("cx", 150)
      
//     var circle = d3.selectAll("circle")
//     .attr("r",20)
//     .attr("cy", 200)
     
	
  </script>
</body>

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