title: Amcharts.js doesn't draw chart properly
body: <p>I'm trying to create a chart which shows prices for product from different shops. The problem is that it shows only the first value of every shop instead of all values (cca 10 for every shop).</p>
  
  <p><a href="https://i.stack.imgur.com/SZ7dv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/SZ7dv.png" alt="enter image description here"></a>
  The data is passed using JSON. Since it has to be multiline chart, I use StockChart.</p>
  
  <p>Do you see where is the problem?</p>
  
  <pre><code>&lt;script&gt;
      var lines = [];
      var dataSets = [];
  
      generateChartData();
  
      function generateChartData() {
          var google_chart_json = {"fotolab.sk": [[[2016, 12, 19, 20, 38], 338.36], [[2016, 12, 18, 20, 38], 341.82], [[2016, 12, 17, 20, 38], 382.92], [[2016, 12, 16, 20, 38], 384.24], [[2016, 12, 15, 20, 38], 393.16], [[2016, 12, 14, 20, 38], 319.6], [[2016, 12, 13, 20, 38], 329.64], [[2016, 12, 12, 20, 38], 300.1], [[2016, 12, 11, 20, 38], 324.66], [[2016, 12, 10, 20, 38], 377.9], [[2016, 12, 20, 18, 52], 359.0]], "hej.sk": [[[2016, 12, 19, 20, 38], 380.18], [[2016, 12, 18, 20, 38], 327.4], [[2016, 12, 17, 20, 38], 382.5], [[2016, 12, 16, 20, 38], 389.76], [[2016, 12, 15, 20, 38], 385.23], [[2016, 12, 14, 20, 38], 355.48], [[2016, 12, 13, 20, 38], 328.39], [[2016, 12, 12, 20, 38], 311.35], [[2016, 12, 11, 20, 38], 350.8], [[2016, 12, 10, 20, 38], 389.81], [[2016, 12, 20, 18, 52], 399.0]], "mall.sk": [[[2016, 12, 19, 20, 38], 341.9], [[2016, 12, 18, 20, 38], 319.2], [[2016, 12, 17, 20, 38], 360.81], [[2016, 12, 16, 20, 38], 315.76], [[2016, 12, 15, 20, 38], 347.37], [[2016, 12, 14, 20, 38], 353.97], [[2016, 12, 13, 20, 38], 300.64], [[2016, 12, 12, 20, 38], 302.87], [[2016, 12, 11, 20, 38], 308.8], [[2016, 12, 10, 20, 38], 351.25], [[2016, 12, 20, 18, 52], 399.0]], "shoppie.sk": [[[2016, 12, 19, 20, 38], 363.41], [[2016, 12, 18, 20, 38], 315.55], [[2016, 12, 17, 20, 38], 369.09], [[2016, 12, 16, 20, 38], 369.85], [[2016, 12, 15, 20, 38], 354.29], [[2016, 12, 14, 20, 38], 305.96], [[2016, 12, 13, 20, 38], 387.4], [[2016, 12, 12, 20, 38], 303.95], [[2016, 12, 11, 20, 38], 384.83], [[2016, 12, 10, 20, 38], 303.81], [[2016, 12, 20, 18, 52], 399.0]], "k24.sk": [[[2016, 12, 19, 20, 38], 329.87], [[2016, 12, 18, 20, 38], 349.04], [[2016, 12, 17, 20, 38], 317.51], [[2016, 12, 16, 20, 38], 386.28], [[2016, 12, 15, 20, 38], 371.44], [[2016, 12, 14, 20, 38], 321.24], [[2016, 12, 13, 20, 38], 391.55], [[2016, 12, 12, 20, 38], 372.62], [[2016, 12, 11, 20, 38], 383.1], [[2016, 12, 10, 20, 38], 337.88], [[2016, 12, 20, 18, 52], 310.58]], "ello24.com": [[[2016, 12, 19, 20, 38], 327.53], [[2016, 12, 18, 20, 38], 395.58], [[2016, 12, 17, 20, 38], 366.37], [[2016, 12, 16, 20, 38], 328.88], [[2016, 12, 15, 20, 38], 330.78], [[2016, 12, 14, 20, 38], 349.29], [[2016, 12, 13, 20, 38], 327.62], [[2016, 12, 12, 20, 38], 396.08], [[2016, 12, 11, 20, 38], 336.72], [[2016, 12, 10, 20, 38], 345.49], [[2016, 12, 20, 18, 52], 304.0]]};
          var loopcounter = -1;
          $.each(google_chart_json, function (key, val) {
              var line = [];
              loopcounter = loopcounter + 1;
  
              $.each(val, function (_, scan) {
                  var year = scan[0][0];
                  var month = scan[0][1];
                  var day = scan[0][2];
                  var hour = scan[0][3];
                  var minute = scan[0][4];
                  var price = scan[1];
  
                  var data = {
                      'date': new Date(year, month - 1, day, hour, minute),
                      'value': price
                  };
                  line.push(data);
              });
  
              lines.push([key, line]);
          });
          console.log('LINES');
          console.log(lines);
  
  
          $.each(lines, function (_, name_line) {
              var dict = {
                  'title': name_line[0],
                  "fieldMappings": [{
                      "fromField": "value",
                      "toField": "value"
                  }],
                  "dataProvider": name_line[1],
                  "categoryField": "date"
              };
              dataSets.push(dict);
          });
      }
  
      var chart = AmCharts.makeChart("chartdiv", {
          "type": "stock",
          "theme": "light",
          "dataSets": dataSets,
  
          "panels": [{
              "showCategoryAxis": false,
              "title": "Value",
              "percentHeight": 70,
  
              "stockGraphs": [{
                  "id": "g1",
                  "valueField": "value",
                  "comparable": true,
                  "compareField": "value",
                  "balloonText": "[[title]]:&lt;b&gt;[[value]]&lt;/b&gt;",
                  "compareGraphBalloonText": "[[title]]:&lt;b&gt;[[value]]&lt;/b&gt;"
              }],
              "stockLegend": {
                  "periodValueTextComparing": "[[percents.value.close]]%",
                  "periodValueTextRegular": "[[value.close]]"
              }
          }],
  
          "chartScrollbarSettings": {
              "graph": "g1"
          },
  
          "chartCursorSettings": {
              "valueBalloonsEnabled": true,
              "fullWidth": true,
              "cursorAlpha": 0.1,
              "valueLineBalloonEnabled": true,
              "valueLineEnabled": true,
              "valueLineAlpha": 0.5
          },
  
          "periodSelector": {
              "position": "left",
              "periods": [{
                  "period": "MM",
                  "selected": true,
                  "count": 1,
                  "label": "1 month"
              }, {
                  "period": "YYYY",
                  "count": 1,
                  "label": "1 year"
              }, {
                  "period": "YTD",
                  "label": "YTD"
              }, {
                  "period": "MAX",
                  "label": "MAX"
              }]
          },
  
          "dataSetSelector": {
              "position": "left"
          },
  
          "export": {
              "enabled": true
          }
      });
      chart.panelsSettings.recalculateToPercents = "never";
  &lt;/script&gt;
  </code></pre>