anychart.onDocumentReady(function () {
{id: 1, valueNum: 12, name: 'Phase 1 - Strategic Plan', progressValue: 0.14, actualStart: '2000-02-24', actualEnd: '2000-02-27'},
{id: 2, valueNum: 21, name: 'Self-Assessment', parent: 1, progressValue: 0.25, actualStart: '2000-02-24', actualEnd: '2000-02-29'},
{id: 3, valueNum: 34, name: 'Define business vision', parent: 2, progressValue: 0, actualStart: '2000-02-24T24:00', actualEnd: '2000-02-25T09:00', connectTo: 4, connectorType: 'finish-start'},
{id: 4, valueNum: 55, name: 'Identify available skills, information and support', parent: 2, progressValue: 0, actualStart: '2000-02-26T00:00', actualEnd: '2000-02-26T09:00', connectTo: 5, connectorType: 'finish-start'},
{id: 5, valueNum: 73, name: 'Decide whether to proceed', parent: 2, progressValue: 0, actualStart: '2000-02-27', actualEnd: '2000-02-28T08:00', connectTo: 6, connectorType: 'finish-start'},
{id: 6, valueNum: 43, name: 'Define the Opportunity', parent: 1, progressValue: 0.27, actualStart: '2000-02-28T08:00', actualEnd: '2000-02-29'},
{id: 7, valueNum: 64, name: 'Research the market and competition', parent: 6, progressValue: 0, actualStart: '2000-02-26T08:00', actualEnd: '2000-02-27'}
var treeData = anychart.data.tree(data, 'as-table');
var mapping = treeData.mapAs({value: 'valueNum'});
var numChildren = treeData.numChildren();
var chart = anychart.ganttProject();
chart.title('Number of roots ' + numChildren);
chart.container('container');