Amchart with two lines - amcharts

Question

i have an amchart with two lines:
<script type="text/javascript">
var chart;
var graph;
var chartData2 = [
{"year":"2014-10-04 23:30:03", "v1":9.1, "v2":0},
{"year":"2014-10-04 23:45:02", "v1":8.8, "v2":86.2},
...
{"year":"2014-10-05 23:30:02", "v1":8.7, "v2":98.7},
{"year":"2014-10-05 23:45:02", "v1":8.5, "v2":98.7},
{"year":"2014-10-06 00:00:01", "v1":8.4, "v2":98.5},
{"year":"2014-10-06 00:15:02", "v1":8.5, "v2":98.3},
{"year":"2014-10-06 00:30:01", "v1":8.4, "v2":97.9}
];
AmCharts.ready(function () {
// SERIAL CHART
chart = new AmCharts.AmSerialChart();
chart.pathToImages = "../amcharts/images/";
chart.dataProvider = chartData2;
chart.marginLeft = 10;
chart.categoryField = "year";
chart.dataDateFormat = "JJ:NN:SS";
//chart.addListener("dataUpdated", zoomChart);
// AXES
// category
var categoryAxis = chart.categoryAxis;
categoryAxis.parseDates = true;
categoryAxis.minPeriod = "100";
categoryAxis.dashLength = 3;
categoryAxis.minorGridEnabled = true;
categoryAxis.minorGridAlpha = 0.1;
// value
var valueAxis = new AmCharts.ValueAxis();
valueAxis.id = "ax1";
valueAxis.axisAlpha = 0;
valueAxis.inside = true;
valueAxis.dashLength = 3;
valueAxis.position = "right";
chart.addValueAxis(valueAxis);
var valueAxis2 = new AmCharts.ValueAxis();
valueAxis2.id = "ax2";
valueAxis2.axisAlpha = 0;
valueAxis2.inside = true;
valueAxis2.dashLength = 3;
valueAxis2.baseValue = -20;
valueAxis2.position = "left";
chart.addValueAxis(valueAxis2);
// GRAPH
graph = new AmCharts.AmGraph();
graph.valueaxis = "ax1";
graph.type = "smoothedLine";
graph.lineColor = "#d1655d";
graph.negativeLineColor = "#637bb6";
graph.bullet = "square";
graph.bulletSize = 8;
graph.bulletBorderColor = "#FFFFFF";
graph.bulletBorderAlpha = 1;
graph.bulletBorderThickness = 2;
graph.lineThickness = 2;
graph.valueField = "v1";
graph.title = "title v1";
graph.balloonText = "[[category]]<br><b><span style='font-size:14px;'>[[value]]</span></b>";
chart.addGraph(graph);
graph2 = new AmCharts.AmGraph();
graph2.valueAxis = "ax2";
graph2.type = "smoothedLine";
graph2.lineColor = "#d1655d";
graph2.negativeLineColor = "#637bb6";
graph2.bullet = "round";
graph2.bulletSize = 8;
graph2.bulletBorderColor = "#FFFFFF";
graph2.bulletBorderAlpha = 1;
graph2.bulletBorderThickness = 2;
graph2.lineThickness = 2;
graph2.valueField = "v2";
graph2.title = "title v2";
graph2.balloonText = "[[category]]<br><b><span style='font-size:14px;'>[[value]]</span></b>";
chart.addGraph(graph2);
// CURSOR
var chartCursor = new AmCharts.ChartCursor();
chartCursor.cursorAlpha = 0;
chartCursor.cursorPosition = "mouse";
chartCursor.categoryBalloonDateFormat = "JJ:NN:SS";
chart.addChartCursor(chartCursor);
// SCROLLBAR
var chartScrollbar = new AmCharts.ChartScrollbar();
chart.addChartScrollbar(chartScrollbar);
chart.creditsPosition = "bottom-right";
// WRITE
chart.write("chartdiv2");
});
I can see the x-and y-axis, but no lines with values. Can anyone please help me?

Answer 1

Two problems:
dataDateFormat is incorrect, should be: chart.dataDateFormat = "YYYY-MM-DD JJ:NN:SS";
minPeriod is incorrect, should be: categoryAxis.minPeriod = "ss";