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Scatter Chart with Dual Y-axis
Following is an example of a material scatter chart with dual Y-axis. We've already seen the configuration used to draw this chart in Google Charts Configuration Syntax chapter. So, let's see the complete example.
Configurations
We've used axes.y configuration to show dual y axes.
// Set chart options var options = { axes: { y: { 'hours studied': {label: 'Hours Studied'}, 'final grade': {label: 'Final Exam Grade'} } } };
Example
googlecharts_scatter_dualy.htm
<html> <head> <title>Google Charts Tutorial</title> <script type = "text/javascript" src = "https://www.gstatic.com/charts/loader.js"> </script> <script type = "text/javascript"> google.charts.load('current', {packages: ['corechart','scatter']}); </script> </head> <body> <div id = "container" style = "width: 550px; height: 400px; margin: 0 auto"> </div> <script language = "JavaScript"> function drawChart() { // Define the chart to be drawn. var data = new google.visualization.DataTable(); data.addColumn('number', 'Student ID'); data.addColumn('number', 'Hours Studied'); data.addColumn('number', 'Final'); data.addRows([ [0, 0, 67], [1, 1, 88], [2, 2, 77], [3, 3, 93], [4, 4, 85], [5, 5, 91], [6, 6, 71], [7, 7, 78], [8, 8, 93], [9, 9, 80], [10, 10, 82], [11, 0, 75], [12, 5, 80], [13, 3, 90], [14, 1, 72], [15, 5, 75], [16, 6, 68], [17, 7, 98], [18, 3, 82], [19, 9, 94], [20, 2, 79], [21, 2, 95], [22, 2, 86], [23, 3, 67], [24, 4, 60], [25, 2, 80], [26, 6, 92], [27, 2, 81], [28, 8, 79], [29, 9, 83] ]); var options = { chart: { title: 'Students\' Final Grades', subtitle: 'based on hours studied' }, width: 800, height: 500, series: { 0: {axis: 'hours studied'}, 1: {axis: 'final grade'} }, axes: { y: { 'hours studied': {label: 'Hours Studied'}, 'final grade': {label: 'Final Exam Grade'} } } }; // Instantiate and draw the chart. var chart = new google.charts.Scatter(document.getElementById('container')); chart.draw(data, google.charts.Scatter.convertOptions(options)); } google.charts.setOnLoadCallback(drawChart); </script> </body> </html>
Result
Verify the result.
googlecharts_scatter_charts.htm
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