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HTML

              
                <!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
  </head>
  <body>
    <div id="year-btns">
    </div>
    <div id="mode-btns">
      <button id="mode-perc">Percentage</button>
      <button id="mode-num">Number</button>
    </div>
    <div id='chart'></div>
  </body>
</html>

              
            
!

CSS

              
                
              
            
!

JS

              
                var DIAGNOSES = [{"Week":"Jan 7 to 13","year":"2018","number of diagnosed ":"2836","% of total cases observed":"1.99%","Total cases":"142202"},{"Week":"Jan 14 to 20","year":"2018","number of diagnosed ":"3027","% of total cases observed":"2.21%","Total cases":"136736"},{"Week":"jan 21 to 27","year":"2018","number of diagnosed ":"3045","% of total cases observed":"2.19%","Total cases":"139106"},{"Week":"Jan 28 to Feb 3","year":"2018","number of diagnosed ":"2940","% of total cases observed":"2.12%","Total cases":"138578"},{"Week":"Feb 4 to Feb 10","year":"2018","number of diagnosed ":"3012","% of total cases observed":"2.08%","Total cases":"144493"},{"Week":"Feb 11 to Feb 17","year":"2018","number of diagnosed ":"2906","% of total cases observed":"2.01%","Total cases":"144433"},{"Week":"Feb 18 to Feb 24","year":"2018","number of diagnosed ":"2700","% of total cases observed":"1.90%","Total cases":"141833"},{"Week":"Feb 25 to March 3","year":"2018","number of diagnosed ":"2167","% of total cases observed":"1.55%","Total cases":"139566"},{"Week":"March 4 to 10","year":"2018","number of diagnosed ":"1772","% of total cases observed":"1.27%","Total cases":"139251"},{"Week":"March 11 to 17","year":"2018","number of diagnosed ":"1613","% of total cases observed":"1.15%","Total cases":"140083"},{"Week":"March 18 to 24","year":"2018","number of diagnosed ":"1560","% of total cases observed":"1.11%","Total cases":"140429"},{"Week":"March 25 to 31","year":"2018","number of diagnosed ":"1511","% of total cases observed":"1.09%","Total cases":"138145"},{"Week":"April 1 to 7","year":"2018","number of diagnosed ":"1506","% of total cases observed":"1.08%","Total cases":"139853"},{"Week":"April 8 to 14","year":"2018","number of diagnosed ":"1372","% of total cases observed":"0.96%","Total cases":"143036"},{"Week":"April 14 to 21","year":"2018","number of diagnosed ":"1305","% of total cases observed":"0.91%","Total cases":"144189"},{"Week":"April 22 to 28","year":"2018","number of diagnosed ":"1242","% of total cases observed":"0.87%","Total cases":"142447"},{"Week":"April 29 to May 5","year":"2018","number of diagnosed ":"1280","% of total cases observed":"0.88%","Total cases":"144812"},{"Week":"May 6 to May 12","year":"2018","number of diagnosed ":"1285","% of total cases observed":"0.87%","Total cases":"148229"},{"Week":"May 13 to 19","year":"2018","number of diagnosed ":"1240","% of total cases observed":"0.83%","Total cases":"149640"},{"Week":"May 20 to 26","year":"2018","number of diagnosed ":"1159","% of total cases observed":"0.78%","Total cases":"149015"},{"Week":"May 27 to June 2","year":"2018","number of diagnosed ":"1162","% of total cases observed":"0.79%","Total cases":"146988"},{"Week":"June 3 to June 9","year":"2018","number of diagnosed ":"1206","% of total cases observed":"0.81%","Total cases":"149580"},{"Week":"June 10 to 16","year":"2018","number of diagnosed ":"1234","% of total cases observed":"0.83%","Total cases":"149039"},{"Week":"June 17 to 23","year":"2018","number of diagnosed ":"1231","% of total cases observed":"0.82%","Total cases":"150428"},{"Week":"June 24 to 30","year":"2018","number of diagnosed ":"1171","% of total cases observed":"0.79%","Total cases":"148669"},{"Week":"July 1 to 7","year":"2018","number of diagnosed ":"1199","% of total cases observed":"0.80%","Total cases":"149623"},{"Week":"July 8 to 14","year":"2018","number of diagnosed ":"1179","% of total cases observed":"0.79%","Total cases":"150003"},{"Week":"July 15 to 21","year":"2018","number of diagnosed ":"1139","% of total cases observed":"0.76%","Total cases":"149419"},{"Week":"July 22 to 28","year":"2018","number of diagnosed ":"1093","% of total cases observed":"0.74%","Total cases":"148044"},{"Week":"July 29 to Aug 4","year":"2018","number of diagnosed ":"1105","% of total cases observed":"0.75%","Total cases":"146573"},{"Week":"Aug 5 to Aug 11","year":"2018","number of diagnosed ":"1170","% of total cases observed":"0.78%","Total cases":"150752"},{"Week":"Aug 12 to 18","year":"2018","number of diagnosed ":"1174","% of total cases observed":"0.80%","Total cases":"146507"},{"Week":"Aug 19 to 25","year":"2018","number of diagnosed ":"1190","% of total cases observed":"0.80%","Total cases":"148428"},{"Week":"August 26 to Sept 1","year":"2018","number of diagnosed ":"1175","% of total cases observed":"0.78%","Total cases":"150193"},{"Week":"Sept 2 to Sept 8","year":"2018","number of diagnosed ":"1159","% of total cases observed":"0.77%","Total cases":"150107"},{"Week":"Sept 9 to 15","year":"2018","number of diagnosed ":"1252","% of total cases observed":"0.84%","Total cases":"149063"},{"Week":"Sept 16 to 22","year":"2018","number of diagnosed ":"1250","% of total cases observed":"0.82%","Total cases":"151871"},{"Week":"Sept 23 to 29","year":"2018","number of diagnosed ":"1221","% of total cases observed":"0.83%","Total cases":"147251"},{"Week":"Sept 30 to Oct 6","year":"2018","number of diagnosed ":"1260","% of total cases observed":"0.84%","Total cases":"150239"},{"Week":"Oct 7 to 13","year":"2018","number of diagnosed ":"1146","% of total cases observed":"0.77%","Total cases":"147978"},{"Week":"Oct 14 to 20","year":"2018","number of diagnosed ":"1270","% of total cases observed":"0.87%","Total cases":"145583"},{"Week":"Oct 21 to 27","year":"2018","number of diagnosed ":"1277","% of total cases observed":"0.88%","Total cases":"144935"},{"Week":"Oct 28 to Nov 3","year":"2018","number of diagnosed ":"1294","% of total cases observed":"0.89%","Total cases":"145828"},{"Week":"Nov 4 to 10","year":"2018","number of diagnosed ":"1400","% of total cases observed":"0.95%","Total cases":"147042"},{"Week":"Nov 11 to 17","year":"2018","number of diagnosed ":"1273","% of total cases observed":"0.89%","Total cases":"143495"},{"Week":"Nov 18 to 24","year":"2018","number of diagnosed ":"1245","% of total cases observed":"0.91%","Total cases":"136485"},{"Week":"Nov 25 to Dec 1","year":"2018","number of diagnosed ":"1344","% of total cases observed":"0.93%","Total cases":"143804"},{"Week":"Dec 2 to 8","year":"2018","number of diagnosed ":"1368","% of total cases observed":"0.97%","Total cases":"141595"},{"Week":"Dec 9 to 15","year":"2018","number of diagnosed ":"1531","% of total cases observed":"1.05%","Total cases":"145198"},{"Week":"Dec 16 to 22","year":"2018","number of diagnosed ":"1656","% of total cases observed":"1.13%","Total cases":"146851"},{"Week":"December 23 to 29","year":"2018","number of diagnosed ":"1794","% of total cases observed":"1.29%","Total cases":"139319"},{"Week":"Dec 30 to Jan 5","year":"2019","number of diagnosed ":"1720","% of total cases observed":"1.18%","Total cases":"145667"},{"Week":"Jan 6 to 12","year":"2019","number of diagnosed ":"1621","% of total cases observed":"1.12%","Total cases":"144097"},{"Week":"Jan 13 to 19","year":"2019","number of diagnosed ":"1541","% of total cases observed":"1.09%","Total cases":"141407"},{"Week":"Jan 20 to 26","year":"2019","number of diagnosed ":"1584","% of total cases observed":"1.11%","Total cases":"142344"},{"Week":"Jan 27 to Feb 2","year":"2019","number of diagnosed ":"1759","% of total cases observed":"1.22%","Total cases":"143614"},{"Week":"Feb 3 to Feb 9","year":"2019","number of diagnosed ":"2029","% of total cases observed":"1.34%","Total cases":"151364"},{"Week":"Feb 10 to 16","year":"2019","number of diagnosed ":"1994","% of total cases observed":"1.33%","Total cases":"149972"},{"Week":"Feb 17 to 23","year":"2019","number of diagnosed ":"2010","% of total cases observed":"1.36%","Total cases":"147662"},{"Week":"Feb 24 March 2","year":"2019","number of diagnosed ":"1874","% of total cases observed":"1.25%","Total cases":"149951"},{"Week":"March 3 to 9","year":"2019","number of diagnosed ":"1933","% of total cases observed":"1.28%","Total cases":"151327"},{"Week":"March 10 to 16","year":"2019","number of diagnosed ":"1953","% of total cases observed":"1.28%","Total cases":"152131"},{"Week":"March 17 to 23","year":"2019","number of diagnosed ":"1771","% of total cases observed":"1.18%","Total cases":"150579"},{"Week":"March 24 to 30","year":"2019","number of diagnosed ":"1614","% of total cases observed":"1.11%","Total cases":"145346"},{"Week":"","year":"","number of diagnosed ":"","% of total cases observed":"","Total cases":""},{"Week":"10th","year":"","number of diagnosed ":"1159","% of total cases observed":"0.78%","Total cases":"139251"},{"Week":"25th","year":"","number of diagnosed ":"1194.5","% of total cases observed":"0.80%","Total cases":"142017.5"},{"Week":"Mean","year":"","number of diagnosed ":"1542","% of total cases observed":"1.07%","Total cases":"145234.6275"},{"Week":"75th","year":"","number of diagnosed ":"1545.5","% of total cases observed":"1.09%","Total cases":"149027"},{"Week":"90th","year":"","number of diagnosed ":"2836","% of total cases observed":"2.00%","Total cases":"150107"}];

var MONTHS = [
  {"len": 31, "color": "#8dd3c7", "label": "January", "id": "january"},
  {"len": 28, "color": "#ffffb3", "label": "February", "id": "february"},
  {"len": 31, "color": "#bebada", "label": "March", "id": "march"},
  {"len": 30, "color": "#fb8072", "label": "April", "id": "april"},
  {"len": 31, "color": "#80b1d3", "label": "May", "id": "may"},
  {"len": 30, "color": "#fdb462", "label": "June", "id": "june"},
  {"len": 31, "color": "#b3de69", "label": "July", "id": "july"},
  {"len": 31, "color": "#fccde5", "label": "August", "id": "august"},
  {"len": 30, "color": "#d9d9d9", "label": "September", "id": "september"},
  {"len": 31, "color": "#bc80bd", "label": "October", "id": "october"},
  {"len": 30, "color": "#ccebc5", "label": "November", "id": "november"},
  {"len": 31, "color": "#ffed6f", "label": "December", "id": "december"}
];

var WIDTH = 500;

function drawCircos(mode, diagnoses) {
  document.getElementById("chart").innerHTML = "";

  diagnoses = diagnoses.map(function(d) {
    d["value"] = (mode === "percentage" ?
                  d["diagnosed"]/d["totalCases"] * 100 :
                  d["diagnosed"]);
    d["block_id"] = d["month"];
    return d;
  });

  var circos = new Circos({
    container: '#chart',
    width: WIDTH,
    height: WIDTH
  });

  circos.layout(MONTHS, {
    innerRadius: WIDTH / 2 - 80,
    outerRadius: WIDTH / 2 - 30,
    ticks: {display: false},
    labels: {
      position: "center",
      display: true,
      size: 12,
      color: "#000"
    }
  }).heatmap("diagnoses", diagnoses, {
    innerRadius: 0.6,
    outerRadius: 0.98,
    logScale: true,
    color: "-Spectral",
    tooltipContent: function(datum, index) {
      var value = (mode === "percentage" ?
                   datum.value.toFixed(4) + "%" :
                   datum.diagnosed + "/" + datum.totalCases);
      return datum.dateRange + ": " + value;
    }
  }).render();
}

function splitDateRange(dateRange) {
  function convertMonth(month) {
    month = month.trim().toLowerCase();
    var monthIDs = MONTHS.map(function(m) { return m.id; });

    for (var i = 0; i < monthIDs.length; i++) {
      if (monthIDs[i].startsWith(month)) {
        return monthIDs[i];
      }
    }
  }
  dateRange = dateRange.split(" to ");
  if (dateRange.length !== 2) {
    return;
  }

  var start = dateRange[0].split(" ");
  var end = dateRange[1].split(" ");

  var monthStart = convertMonth(start[0]);
  var monthEnd = convertMonth(end[0]);

  if (end.length === 1 || monthStart === monthEnd) {
    return [
      [convertMonth(start[0]), Number(start[1]) - 1,
       monthEnd ? Number(end[1]) : Number(end[0])]
    ];
  } else {
    var monthDays = MONTHS.filter(function(m) { return m.id === monthStart; })
    .map(function(m) { return m.len; })[0];
    return [
      [monthStart, Number(start[1]) - 1, monthDays],
      [monthEnd, 0, Number(end[1])]
    ];
  }
}

function parseCSV(error, diagnosesCSV) {
  var diagnoses = {};
  diagnosesCSV.forEach(function(row) {
    var split = splitDateRange(row["Week"]);
    if (typeof split === "undefined") {
      return;
    }

    var year = row["year"].trim();
    var diagnosed = Number(row["number of diagnosed "]);
    var totalCases = Number(row["Total cases"]);

    if (diagnosed === 0) {
      return;
    }

    if (typeof diagnoses[year] === "undefined") {
      diagnoses[year] = [];
    }

    split.forEach(function(range) {
      diagnoses[year].push({
        "month": range[0],
        "start": range[1],
        "end": range[2],
        "diagnosed": diagnosed,
        "totalCases": totalCases,
        "dateRange": row["Week"],
        "year": year
      });
    });
  });

  var years = Object.keys(diagnoses).sort();
  var yearBtns = document.getElementById("year-btns");
  yearBtns.innerHTML = "";

  years.forEach(function(year) {
    var button = document.createElement("button");
    button.innerHTML = year;
    button.onclick = function() {
      document.getElementById("mode-perc").onclick = function() {
        drawCircos("percentage", diagnoses[year]);
      };
      document.getElementById("mode-num").onclick = function() {
        drawCircos("number", diagnoses[year]);
      };
      drawCircos("percentage", diagnoses[year]);
    };
    yearBtns.appendChild(button);
  });
  
  document.getElementById("year-btns").firstChild.click();
}

parseCSV(null, DIAGNOSES);
              
            
!
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