romsson/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    Built with blockbuilder.org

  
## index.html
<!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>

  // Set some margins
	var margin = {top: 20, right: 20, bottom: 20, left: 50};

	var width = 600 - margin.left - margin.right,
    height = 400 - margin.top - margin.bottom;

  // Create the SVG
  var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
   .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

  // Scales
  var y = d3.scaleLinear()
  	.range([height, 0]);

  var t = d3.scaleTime()
  	.range([0, width]);

  // Date format https://bl.ocks.org/zanarmstrong/ca0adb7e426c12c06a95
  var parseTime  = d3.timeParse("%b %Y")

  var color = d3.scaleOrdinal(d3.schemeCategory20)

  // Load stocks data
  // Ex: 0: {symbol: "MSFT", date: "Jan 2000", price: "39.81"}
  d3.csv('https://raw.githubusercontent.com/LyonDataViz/MOS5.5-Dataviz/master/data/stocks.csv', function(error, raw) {

    var symbols = [];

    var data = []

    // Data pre-processing
    raw.forEach(function(d, i) {

      if(symbols.indexOf(d.symbol) < 0) {
        symbols.push(d.symbol)
        data[symbols.indexOf(d.symbol)] = [];
      }

      // String to INT
      d.value = +d.price;

      // Parsing time
      d.date = parseTime(d.date)
      data[symbols.indexOf(d.symbol)].push(d);
    });

    // Calculated on the flat dataset
    t.domain(d3.extent(raw, function(d) {
      return d.date;
    }))

    y.domain([0, d3.max(raw, function(d) {
      return d.value;
    })])

    // We update the x-scale using the Temporal scale t
    var xAxis = d3.axisBottom()
    	.scale(t);

    var yAxis = d3.axisLeft()
    	.scale(y);

    // Line generator
    var line = d3.line()//.curve(d3.curveCardinal)
      .x(function(d) { return t(d.date); }) // Update X mapping
      .y(function(d) { return y(d.price); }) // Update Y mapping

    svg.selectAll(".line").data(data).enter()
      .append("path")
      .attr("class", "line")
      .attr("d", function(d) { return line(d); })
      .attr("stroke", function(d, i) { return color(i); })
      .attr("fill", "none");

    svg.append('g')
      .attr('transform', 'translate(0,' + height + ')')
      .attr('class', 'x axis')
      .call(xAxis);

    svg.append('g')
      .attr('transform', 'translate(0,' + 0 + ')')
      .attr('class', 'y axis')
      .call(yAxis);

  });

 </script>

</body>
	<!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>

	// Set some margins
	var margin = {top: 20, right: 20, bottom: 20, left: 50};

	var width = 600 - margin.left - margin.right,
	height = 400 - margin.top - margin.bottom;

	// Create the SVG
	var svg = d3.select("body").append("svg")
	.attr("width", width + margin.left + margin.right)
	.attr("height", height + margin.top + margin.bottom)
	.append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

	// Scales
	var y = d3.scaleLinear()
	.range([height, 0]);

	var t = d3.scaleTime()
	.range([0, width]);

	// Date format https://bl.ocks.org/zanarmstrong/ca0adb7e426c12c06a95
	var parseTime = d3.timeParse("%b %Y")

	var color = d3.scaleOrdinal(d3.schemeCategory20)

	// Load stocks data
	// Ex: 0: {symbol: "MSFT", date: "Jan 2000", price: "39.81"}
	d3.csv('https://raw.githubusercontent.com/LyonDataViz/MOS5.5-Dataviz/master/data/stocks.csv', function(error, raw) {

	var symbols = [];

	var data = []

	// Data pre-processing
	raw.forEach(function(d, i) {

	if(symbols.indexOf(d.symbol) < 0) {
	symbols.push(d.symbol)
	data[symbols.indexOf(d.symbol)] = [];
	}

	// String to INT
	d.value = +d.price;

	// Parsing time
	d.date = parseTime(d.date)
	data[symbols.indexOf(d.symbol)].push(d);
	});

	// Calculated on the flat dataset
	t.domain(d3.extent(raw, function(d) {
	return d.date;
	}))

	y.domain([0, d3.max(raw, function(d) {
	return d.value;
	})])

	// We update the x-scale using the Temporal scale t
	var xAxis = d3.axisBottom()
	.scale(t);

	var yAxis = d3.axisLeft()
	.scale(y);

	// Line generator
	var line = d3.line()//.curve(d3.curveCardinal)
	.x(function(d) { return t(d.date); }) // Update X mapping
	.y(function(d) { return y(d.price); }) // Update Y mapping

	svg.selectAll(".line").data(data).enter()
	.append("path")
	.attr("class", "line")
	.attr("d", function(d) { return line(d); })
	.attr("stroke", function(d, i) { return color(i); })
	.attr("fill", "none");

	svg.append('g')
	.attr('transform', 'translate(0,' + height + ')')
	.attr('class', 'x axis')
	.call(xAxis);

	svg.append('g')
	.attr('transform', 'translate(0,' + 0 + ')')
	.attr('class', 'y axis')
	.call(yAxis);

	});

	</script>

	</body>