JavaScript
google.load('visualization', '1.1', {packages: ['line']});
google.setOnLoadCallback(drawChart);
function drawChart() {
var data = new google.visualization.DataTable();
data.addColumn('date', 'Date');
data.addColumn('number', 'Test 1');
data.addColumn('number', 'Product 1');
data.addColumn('number', 'Product 2');
data.addColumn('number', 'Product 3');
data.addRows([
[new Date(2015, 01, 1), 73, 88, 96, 79],[new Date(2015, 02, 1), 100, 75, 86, 90],[new Date(2015, 03, 1), 76, 95, 93, 86],[new Date(2015, 04, 1), 95, 75, 100, 98],[new Date(2015, 05, 1), 91, 31, 88, 85],[new Date(2015, 06, 1), 90, 74, 72, 79],[new Date(2015, 07, 1), 95, 80, 90, 78], ]);
var options = {
chart: {
title: 'test',
subtitle: '',
},
width: 1300,
height: 600,
vAxis: { format: 'percent' }
};
var chart = new google.charts.Line(document.getElementById('linechart_material'));
chart.draw(data, options);
}