function drawChart() {
  var width = window.innerWidth, // default width
      height = window.innerHeight, // default height
			margin = {top: 10, right: 10, bottom: 10, left: 10};

  function my(selection) {
    // generate chart here, using `width` and `height`
    
    selection.each(function(data){
      
      
      
    })
    
    console.log(selection);
    console.log("drawing hard!")
  }

  //----------- BREAK-----------//
  //SETTER - GETTER
  my.width = function(value) {
    if (!arguments.length) return width;
    width = value;
    return my;
  };

  my.height = function(value) {
    if (!arguments.length) return height;
    height = value;
    return my;
  };
  
  my.margin = function(value) {
    if (!arguments.length) return margin;
    margin = value;
    return my;
  };


  return my;
}