javascript - 積み上げ面グラフ SVG パス d=NaNNaNNaN

Question

実際の例: http://bl.ocks.org/4747134/a702cf79bf10b1438cc665a2438b3f5cf9ab8bf0

コード：

var raw_series = [{"note": "TEXAS LONGHORN", "date": "2013-01-10T00:00:00", "amount": 110.0, "id": 74, "account_id": 1}, {"note": "GOOGLE *FEO Medi", "date": "2013-01-10T00:00:00", "amount": 22.0, "id": 73, "account_id": 1}, {"note": "Pressbyran 5122", "date": "2013-01-10T00:00:00", "amount": 13.0, "id": 77, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-10T00:00:00", "amount": 106.0, "id": 76, "account_id": 1}, {"note": "H\u00c5R 3000", "date": "2013-01-10T00:00:00", "amount": 345.0, "id": 75, "account_id": 1}, {"note": "Pressbyran 5122", "date": "2013-01-11T00:00:00", "amount": 19.0, "id": 72, "account_id": 1}, {"note": "BIRKA PUNKTEN", "date": "2013-01-11T00:00:00", "amount": 79.0, "id": 71, "account_id": 1}, {"note": "DROPBOX", "date": "2013-01-11T00:00:00", "amount": 67.0, "id": 70, "account_id": 1}, {"note": "KAFFESTUGAN", "date": "2013-01-11T00:00:00", "amount": 165.0, "id": 69, "account_id": 1}, {"note": "BIRKA PUNKTEN", "date": "2013-01-12T00:00:00", "amount": 79.0, "id": 67, "account_id": 1}, {"note": "GOOGLE *Chozabu", "date": "2013-01-13T00:00:00", "amount": 15.0, "id": 63, "account_id": 1}, {"note": "VIDEO RULLEN", "date": "2013-01-13T00:00:00", "amount": 171.0, "id": 66, "account_id": 1}, {"note": "\u00c5SGATAN 2 K\u00d6K &", "date": "2013-01-13T00:00:00", "amount": 224.0, "id": 65, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-13T00:00:00", "amount": 209.0, "id": 64, "account_id": 1}, {"note": "GOOGLE *Camel Ga", "date": "2013-01-13T00:00:00", "amount": 7.0, "id": 62, "account_id": 1}, {"note": "THE RACKSPACE CL", "date": "2013-01-16T00:00:00", "amount": 252.0, "id": 59, "account_id": 1}, {"note": "Pressbyran 8535", "date": "2013-01-16T00:00:00", "amount": 33.0, "id": 61, "account_id": 1}, {"note": "BIRKA PUNKTEN", "date": "2013-01-16T00:00:00", "amount": 79.0, "id": 60, "account_id": 1}, {"note": "KAFFESTUGAN", "date": "2013-01-16T00:00:00", "amount": 75.0, "id": 58, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-18T00:00:00", "amount": 80.0, "id": 56, "account_id": 1}, {"note": "STATION", "date": "2013-01-18T00:00:00", "amount": 89.0, "id": 55, "account_id": 1}, {"note": "FREE SOFTWARE FO", "date": "2013-01-19T00:00:00", "amount": 132.0, "id": 52, "account_id": 1}, {"note": "\u00d6verf\u00f6ring 100/m\u00e5n", "date": "2013-01-19T00:00:00", "amount": 100.0, "id": 53, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-19T00:00:00", "amount": 321.0, "id": 51, "account_id": 1}, {"note": "VIDEO RULLEN", "date": "2013-01-21T00:00:00", "amount": 179.0, "id": 46, "account_id": 1}, {"note": "Automatuttag", "date": "2013-01-21T00:00:00", "amount": 300.0, "id": 49, "account_id": 1}, {"note": "\u00c5SGATAN 2 K\u00d6K &", "date": "2013-01-21T00:00:00", "amount": 26.0, "id": 48, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-21T00:00:00", "amount": 174.0, "id": 47, "account_id": 1}, {"note": "MSFT   *XBOX LIV", "date": "2013-01-22T00:00:00", "amount": 69.0, "id": 45, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-23T00:00:00", "amount": 293.0, "id": 43, "account_id": 1}, {"note": "PIZZERIA CUOCO P", "date": "2013-01-23T00:00:00", "amount": 140.0, "id": 42, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-24T00:00:00", "amount": 283.0, "id": 41, "account_id": 1}, {"note": "HOTELL NORRTULL", "date": "2013-01-25T00:00:00", "amount": 98.0, "id": 38, "account_id": 1}, {"note": "MAT P\u00c5 JOBB", "date": "2013-01-25T00:00:00", "amount": 80.0, "id": 39, "account_id": 1}, {"note": "\u00d6verf\u00f6ring LOVA/peng", "date": "2013-01-26T00:00:00", "amount": 9000.0, "id": 37, "account_id": 1}, {"note": "Pressbyran 5122", "date": "2013-01-26T00:00:00", "amount": 18.0, "id": 33, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-26T00:00:00", "amount": 373.0, "id": 34, "account_id": 1}, {"note": "J\u00c4RNA W\u00c4RDSHUS", "date": "2013-01-26T00:00:00", "amount": 60.0, "id": 35, "account_id": 1}, {"note": "GETSENTRY LLC", "date": "2013-01-26T00:00:00", "amount": 59.0, "id": 36, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-27T00:00:00", "amount": 556.0, "id": 31, "account_id": 1}, {"note": "WWW.NETFLIX.COM", "date": "2013-01-27T00:00:00", "amount": 79.0, "id": 30, "account_id": 1}, {"note": "DIREKTEN GOTTCEN", "date": "2013-01-27T00:00:00", "amount": 175.0, "id": 32, "account_id": 1}, {"note": "\u00c5SGATAN 2 K\u00d6K &", "date": "2013-01-28T00:00:00", "amount": 154.0, "id": 27, "account_id": 1}, {"note": "HYRESG\u00c4STF\u00d6R", "date": "2013-01-28T00:00:00", "amount": 80.0, "id": 26, "account_id": 1}, {"note": "Automatuttag", "date": "2013-01-28T00:00:00", "amount": 800.0, "id": 25, "account_id": 1}, {"note": "REST KINA MUREN", "date": "2013-01-28T00:00:00", "amount": 428.0, "id": 24, "account_id": 1}, {"note": "KOLINGSBORG", "date": "2013-01-28T00:00:00", "amount": 200.0, "id": 23, "account_id": 1}, {"note": "KOLINGSBORG", "date": "2013-01-28T00:00:00", "amount": 105.0, "id": 22, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-01-28T00:00:00", "amount": 199.0, "id": 21, "account_id": 1}, {"note": "SPOTIFY PREMIUM", "date": "2013-01-28T00:00:00", "amount": 99.0, "id": 19, "account_id": 1}, {"note": "7-Eleven 16110 G", "date": "2013-01-28T00:00:00", "amount": 136.0, "id": 20, "account_id": 1}, {"note": "\u00d6verf\u00f6ring Spar, 3k", "date": "2013-01-28T00:00:00", "amount": 3000.0, "id": 29, "account_id": 1}, {"note": "\u00c5SGATAN 2 K\u00d6K &", "date": "2013-01-28T00:00:00", "amount": 235.0, "id": 28, "account_id": 1}, {"note": "FREE SOFTWARE FO", "date": "2013-01-30T00:00:00", "amount": 65.0, "id": 17, "account_id": 1}, {"note": "PAYPAL *SQUAD-KS", "date": "2013-01-30T00:00:00", "amount": 154.0, "id": 18, "account_id": 1}, {"note": "SJ REGIONAL STOC", "date": "2013-01-31T00:00:00", "amount": 56.0, "id": 16, "account_id": 1}, {"note": "CIAO CIAO QUATTR", "date": "2013-02-01T00:00:00", "amount": 220.0, "id": 13, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-02-01T00:00:00", "amount": 50.0, "id": 15, "account_id": 1}, {"note": "APOTEKET DRAKEN", "date": "2013-02-01T00:00:00", "amount": 48.0, "id": 14, "account_id": 1}, {"note": "GRET INDIAN REST", "date": "2013-02-01T00:00:00", "amount": 85.0, "id": 12, "account_id": 1}, {"note": "LINODE.COM", "date": "2013-02-02T00:00:00", "amount": 613.0, "id": 11, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-02-03T00:00:00", "amount": 110.0, "id": 10, "account_id": 1}, {"note": "ICA SUPERMARKET", "date": "2013-02-04T00:00:00", "amount": 196.0, "id": 9, "account_id": 1}, {"note": "VIDEO RULLEN", "date": "2013-02-04T00:00:00", "amount": 169.0, "id": 8, "account_id": 1}, {"note": "OLEARYS 917", "date": "2013-02-06T00:00:00", "amount": 309.0, "id": 4, "account_id": 1}, {"note": "GRET INDIAN REST", "date": "2013-02-06T00:00:00", "amount": 85.0, "id": 6, "account_id": 1}, {"note": "TAXI STOCKHOLM", "date": "2013-02-06T00:00:00", "amount": 875.0, "id": 5, "account_id": 1}, {"note": "BURGER KING ODEN", "date": "2013-02-06T00:00:00", "amount": 89.0, "id": 3, "account_id": 1}, {"note": "\u00c5SGATAN 2 K\u00d6K &", "date": "2013-02-07T00:00:00", "amount": 226.0, "id": 2, "account_id": 1}, {"note": "Loopia AB", "date": "2013-02-07T00:00:00", "amount": 178.0, "id": 1, "account_id": 1}];

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

var format = d3.time.format('%Y-%m-%dT%H:%M:%S')

raw_series.forEach(function (d) { d.date = format.parse(d.date); })

var x = d3.time.scale()
        .range([0, width]);

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

var z = d3.scale.category20c();

var xAxis = d3.svg.axis()
    .scale(x)
    .orient('bottom')
    .ticks(d3.time.days)

var yAxis = d3.svg.axis()
    .scale(y)
    .orient('left');

var stack = d3.layout.stack()
    .offset('zero')
    .values(function (d) { return d.values; })
    .x(function (d) { return d.date; })
    .y(function (d) { return d.amount; });

var nest = d3.nest()
    .key(function (d) { return d.note })
    .key(function (d) { return d.date })

var area = d3.svg.area()
        .interpolate('monotone')
        .x(function (d) { return x(d.date); })
        .y0(function (d) { return y(d.y0); })
        .y1(function (d) { return y(d.y0 + d.y); });

var svg = d3.select('#chart').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 layers = stack(nest.entries(raw_series));

x.domain(d3.extent(raw_series, function (d) { return d.date; }));
y.domain([0, d3.max(raw_series, function (d) { d.y0 + d.y; })]);

svg.selectAll(".layer")
    .data(layers)

  .enter().append("path")
    .attr("class", "layer")
    .attr("d", function(d) { return area(d.values); })
    .style("fill", function(d, i) { return z(i); });

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

svg.append("g")
    .attr("class", "y axis")
    .call(yAxis);

出力：

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        Thu 10
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        Sat 12
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        Jan 13
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        Mon 14
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        Tue 15
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        Wed 16
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        Thu 17
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        Fri 18
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        Sat 19
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        Jan 20
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        Mon 21
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        Tue 22
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        Wed 23
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        Thu 24
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        Fri 25
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        Sat 26
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        Jan 27
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        Mon 28
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        Tue 29
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        Wed 30
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        Thu 31
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        February
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        Sat 02
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        Feb 03
      </text>
    </g>
    <g class="tick major" style="opacity: 1;" transform="translate(794.6428571428572,0)">
      <line x2="0" y2="6"/>
      <text dy=".71em" style="text-anchor: middle;" x="0" y="9">
        Mon 04
      </text>
    </g>
    <g class="tick major" style="opacity: 1;" transform="translate(826.4285714285714,0)">
      <line x2="0" y2="6"/>
      <text dy=".71em" style="text-anchor: middle;" x="0" y="9">
        Tue 05
      </text>
    </g>
    <g class="tick major" style="opacity: 1;" transform="translate(858.2142857142858,0)">
      <line x2="0" y2="6"/>
      <text dy=".71em" style="text-anchor: middle;" x="0" y="9">
        Wed 06
      </text>
    </g>
    <g class="tick major" style="opacity: 1;" transform="translate(890,0)">
      <line x2="0" y2="6"/>
      <text dy=".71em" style="text-anchor: middle;" x="0" y="9">
        Thu 07
      </text>
    </g>
    <path class="domain" d="M0,6V0H890V6"/>
  </g>
  <g class="y axis">
    <path class="domain" d="M-6,0H0V450H-6"/>
  </g>
</g>

私はしばらくの間、この特定の積み上げ面グラフに取り組んできました。私はd3にかなり慣れていないので、d3が正しい情報を取得するために何をどこに置くべきかについてのポインタが必要です。

Answer 1

入力データが正しくありません：

各シリーズは、シリーズごとに同じ数の値を持っている必要があり、各値は同じx座標を持っている必要があることに注意してください。欠測データがある場合、または系列ごとに一貫性のないx座標がある場合は、スタックレイアウトを計算する前に、データを再サンプリングして内挿する必要があります。
— https://github.com/mbostock/d3/wiki/SVG-Shapes#wiki-area