поместите CTR на вторичную ось,
и установите там минимальное и максимальное значения
series: {
5: {
targetAxisIndex: 1, // <-- set as secondary axis
type: 'line'
}
},
vAxes: { // <-- use vAxes for secondary axis options
1: {
title: 'Average',
viewWindow: { // <-- set view window
min: 0,
max: 100
}
}
}
см. Следующий рабочий фрагмент ...
google.charts.load('current', {
packages: ['corechart']
}).then(function () {
var data = google.visualization.arrayToDataTable([
['Month', 'Bolivia', 'Ecuador', 'Madagascar', 'Papua New Guinea', 'Rwanda', 'Average'],
['2004/05', 10165, 12938, 10522, 15998, 14450, 0.6],
['2005/06', 10135, 13120, 11599, 11268, 12288, 20.6],
['2006/07', 11157, 10167, 12587, 12807, 13397, 40.9],
['2007/08', 12139, 11110, 11615, 10968, 12215, 80.4],
['2008/09', 13136, 11691, 10629, 11026, 13366, 90.6]
]);
var options = {
title : 'Monthly Coffee Production by Country',
vAxis: {title: 'Cups'},
hAxis: {title: 'Month'},
seriesType: 'bars',
series: {
5: {
targetAxisIndex: 1,
type: 'line'
}
},
vAxes: {
1: {
title: 'Average',
viewWindow: {
min: 0,
max: 100
}
}
}
};
var chart = new google.visualization.ComboChart(document.getElementById('chart_div'));
chart.draw(data, options);
});
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>