D3 Examples - Greasemonkey users by browser version (1 month)

xxxxxxxxxx
 
<!DOCTYPE html>
<html>
  <head>
    <title>Greasemonkey users by browser version</title>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/d3@1.29.5/d3.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/d3@1.29.5/d3.layout.js"></script>
    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/d3@1.29.5/d3.time.js"></script>
    <script type="text/javascript" src="amo.js"></script>
    <style type="text/css">
​
svg {
  width: 960px;
  height: 500px;
  border: solid 1px #ccc;
  font: 10px sans-serif;
  shape-rendering: crispEdges;
}
​
body, html { margin: 0; }
    </style>
  </head>
  <body>
    <script type="text/javascript">
​
var w = 960
  , h = 500
  , a = 748 // Greasemonkey
  , d = 30 // number of days
  , p = [20, 50, 30, 20]
  , x = d3.scale.ordinal().rangeRoundBands([0, w - p[1] - p[3]])
  , y = d3.scale.linear().range([0, h - p[0] - p[2]])
  , z = d3.scale.category20c()
  , legend = d3.time.format("%Y-%m-%d")
  , data, folded; // for ease of peeking at the input data from the js console
​
var svg = d3.select("body").append("svg:svg")
    .attr("width", w)
    .attr("height", h)
  .append("svg:g")
    .attr("transform", "translate(" + p[3] + "," + (h - p[2]) + ")");
​
get_amo_stats(got_amo_stats, a, d);
​
function got_amo_stats(stats) {
  folded = fold_by(data = stats/*, /([^\/]+)\// */);
  var apps = Object.keys(folded[0]).filter(function(n) { return /[A-Z]/.test(n); });
  draw(folded, apps);
}
​
// stats: an object with some keys on a "Browser/maj[.min[.build[...]]]" format
// output: ditto but with [.build[...]] keys rolled into "Browser/major" keys
// regexp: if given, a regexp whose first match group defines how to fold keys
//         (example: /^(.*\/(?:0|[1-9]\d*\.?\d*))/ folds into x/0, x/1.0, ...)
function fold_by(stats, regexp) {
  function fold(obj) {
    var data = {}, renamed, key, val;
    for (key in obj) {
      val = obj[key];
      if ((renamed = rename(key)))
        data[renamed] = (data[renamed] || 0) + val;
      else
        data[key] = val;
    }
    return data;
  }
  var want   = regexp || /^(.*\/\d+)/ // /^(.*\/(?:0|[1-9]\d*\.?\d*))/
    , rename = function(k) { var m = want.exec(k); return m && m[1]; };
  return stats.map(fold);
}
​
​
function draw(data, keys) {
​
  // Transpose the data into layers by browser name+version.
  var names = d3.layout.stack()(keys.map(function(key) {
    return data.map(function(d) {
      return { x: d.date, y: d[key], n: key };
    });
  }));
​
  // Compute the x-domain (by date) and y-domain (by top).
  x.domain(names[0].map(function(d) { return d.x; }));
  y.domain([0, d3.max(names[names.length - 1], function(d) { return d.y0 + d.y; })]);
​
  // Add a group for each browser version
  var key = svg.selectAll("g.key")
      .data(names)
    .enter().append("svg:g")
      .attr("class", "key")
      .style("fill", function(d, i) { return z(i); })
      .style("stroke", function(d, i) { return d3.rgb(z(i)).darker(); });
​
  // ...with a browser name tooltip.
  key.append("svg:title").text(function(d) { return d[0].n; });
​
  // Add a rect for each date.
  var rect = key.selectAll("rect")
      .data(Object)
    .enter().append("svg:rect")
      .attr("x", function(d) { return x(d.x); })
      .attr("y", function(d) { return -y(d.y0) - y(d.y); })
      .attr("height", function(d) { return y(d.y); })
      .attr("width", x.rangeBand());
​
  // Add a label per date.
  var label = svg.selectAll("text")
      .data(x.domain())
    .enter().append("svg:text")
      .attr("x", function(d) { return x(d) + x.rangeBand() / 2; })
      .attr("y", 6)
      .attr("text-anchor", "middle")
      .attr("dy", ".71em")
      .text(legend);
​
  // Add y-axis rules.
  var rule = svg.selectAll("g.rule")
      .data(y.ticks(5))
    .enter().append("svg:g")
      .attr("class", "rule")
      .attr("transform", function(d) { return "translate(0," + -y(d) + ")"; });
​
  rule.append("svg:line")
      .attr("x2", w - p[1] - p[3])
      .style("stroke", function(d) { return d ? "#fff" : "#000"; })
      .style("stroke-opacity", function(d) { return d ? .7 : null; });
​
  rule.append("svg:text")
      .attr("x", w - p[1] - p[3] + 6)
      .attr("dy", ".35em")
      .text(d3.format(",d"));
}
​
    </script>
  </body>
</html>
​
    