Lever Love (Hire2)

This grouped bar chart is constructed from a CSV file storing the number of LGTM's of different pull requests at Lever's repo of Hire2 by user.

forked from mbostock's block: Grouped Bar Chart

<!DOCTYPE html>
<meta charset="utf-8">
<style>
  body {
    font: 10px sans-serif;
    margin: auto;
    position: relative;
    width: 960px;  
  }

text {
    font: 10px sans-serif;
  }  
    
  .axis path,
  .axis line {
    fill: none;
    stroke: #000;
    shape-rendering: crispEdges;
  }

.bar {
    fill: steelblue;
  }

.x.axis path {
    display: none;
  }

form {
    position: absolute;
    right: 10px;
    top: 10px;
  }
</style>
<body>
  <label><input type="radio" name="mode" value="Give" checked> Give</label>
  <label><input type="radio" name="mode" value="Receive"> Receive</label>  
  <label><input type="radio" name="mode" value="Total"> Total</label>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>

var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom - 10;

var x0 = d3.scale.ordinal()
    .rangeRoundBands([0, width], .1);

var x1 = d3.scale.ordinal();

var y = d3.scale.linear()
    .range([height, 0]);

var color = d3.scale.ordinal()
    .range(["#9EBD06","00A1DC","#DD4B39"]);

var xAxis = d3.svg.axis()
    .scale(x0)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left")
    .tickFormat(d3.format(".2s"));

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 + ")");

var globalData = [];
var countType = undefined;
d3.csv("data.csv", function(error, data) {
  if (error) throw error;
  var sortType = 'Give'

countType = d3.keys(data[0]).filter(function(key) { return key !== "Engineer"; });
  data.forEach(function(d) {
    d.counts = countType.map(function(name) { return {name: name, value: +d[name]}; });
  })
  globalData = data.slice();
  data = data.sort(function(a, b){
    return +b[sortType] - +a[sortType];
  })

x0.domain(data.map(function(d) { return d.Engineer; }));
  x1.domain(countType).rangeRoundBands([0, x0.rangeBand()]);
  y.domain([0, d3.max(data, function(d) { return d3.max(d.counts, function(d) { return d.value; }); })]);

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

svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Count");

var engineer = svg.selectAll(".engineer")
      .data(data)
    .enter().append("g")
      .attr("class", "g engineer")
      .attr("transform", function(d) { return "translate(" + x0(d.Engineer) + ",0)"; });

engineer.selectAll("rect")
      .data(function(d) { return d.counts; })
    .enter().append("rect")
      .attr("width", x1.rangeBand())
      .attr("height", 0)
      .attr("x", function(d) { return x1(d.name); })
      .attr("y", function(d) { return y(0); })
      .style("fill", function(d) { return color(d.name); })
      .style("opacity", function(d) { 
        if (d.name === sortType) return 1;
        return 0.15;
      })
      .transition().duration(1000)
      .attr("height", function(d) { return height - y(d.value); })
      .attr("y", function(d) { return y(d.value); })

var legend = svg.selectAll(".legend")
      .data(countType.slice().reverse())
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });

legend.append("rect")
      .attr("x", width - 18)
      .attr("width", 18)
      .attr("height", 18)
      .style("fill", color);

legend.append("text")
      .attr("x", width - 24)
      .attr("y", 9)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d; });

});

d3.selectAll("input").on("change", change);
  
function change() {
  sortType = this.value
  transitionData(sortType);
}

function transitionData(sortType){
  var data = globalData.slice().sort(function(a, b){
    return +b[sortType] - +a[sortType];
  })

x0.domain(data.map(function(d) { return d.Engineer; }));
  x1.domain(countType).rangeRoundBands([0, x0.rangeBand()]);

var engineer = d3.selectAll(".engineer")
  
  engineer.transition().delay(800)
      .duration(function(d, i){ return 300 * i + 300; })
      .attr("transform", function(d) { return "translate(" + x0(d.Engineer) + ",0)"; });

engineer.selectAll("rect")
      .transition()
      .duration(800)
      .style("opacity", function(d) { 
        if (d.name === sortType) return 1;
        return 0.15;
      })

xAxis.scale(x0);
  d3.selectAll(".x.axis").transition().delay(1000)
      .duration(data.length * 100).call(xAxis)
}

</script>

https://d3js.org/d3.v3.min.js