TP3_area

forked from lsoudade's block: TP3_small_multiples

<!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; }
    
		svg {
  		font: 30px sans-serif;
      color:red;
		}
    .line {
      fill: none;
      stroke: black;
      stroke-width: 2px;
    }
  </style>
</head>

<body>
<script>
    
var width = 900
var height = 500
var color = d3.scaleOrdinal(d3.schemeCategory10);
var parseDate = d3.timeParse("%b %Y");
var x = d3.scaleTime().range([0, width]),
  y = d3.scaleLinear().range([height, 0]),
  c = d3.scaleOrdinal(d3.schemeCategory10);
  
var area = d3.area()
    .curve(d3.curveBasis)
    .x(function(d) { return x(d.date); })
    .y1(function(d) { return y(d.price); });
  
d3.text('dataset.csv', function(error, raw) {
  var dsv = d3.dsvFormat(',')
  var data = dsv.parse(raw);
  
  // Nest stock values by symbol.
  var symbols = d3.nest()
      .key(function(d) { return d.symbol; })
      .entries(data);
	// Parse and caculate some values for each symbols
  symbols.forEach(function(s) {
    s.values.forEach(function(d) { 
      d.date = parseDate(d.date); 
      d.price = +d.price; 
    });
     
    s.maxPrice = d3.max(s.values, function(d) { return d.price; });
    s.sumPrice = d3.sum(s.values, function(d) { return d.price; });
  });
  		 
  x.domain(d3.extent(data, function(d) { return d.date; }));
  y.domain([0, d3.max(symbols.map(function(d) { return d.maxPrice; }))])
  area.y0(y(0));
  var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height)
    .append("g")
    .attr("class", "symbol");
  
  var g = svg.selectAll("g")
      .data(symbols)
      .enter().append("g")
      .attr("class", "symbol");
  
  dat_3 = symbols[3].values
  
  g.append("path")
      .datum(dat_3)
      .attr("d", area)
  		.attr("fill", function(d){return color(d.key)})
  
  g.append("text")
    .datum(dat_3)
    .attr("x", 0)
    .attr("y", 40)
    .text(function(d) { return d.key; }); 
  
});
</script>
</body>

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