Graphiques Google - Lignes de tendance exponentielles
Voici un exemple de graphique de courbes de tendance exponentielles. Nous avons déjà vu la configuration utilisée pour dessiner ce graphique dans le chapitre Syntaxe de configuration de Google Charts . Alors, voyons l'exemple complet.
Configurations
Nous avons utilisé trendlines configuration pour afficher le diagramme des courbes de tendance.
var options = {
trendlines: { 0: {type: 'exponential'} } // Draw a trendline for data series 0.
};Exemple
googlecharts_trendlines_exponential.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" src = "https://www.google.com/jsapi">
</script>
<script type = "text/javascript">
google.charts.load('current', {packages: ['corechart']});
</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', 'Age');
data.addColumn('number', 'Weight');
data.addRows([
[ 8, 12],
[ 4, 5.5],
[ 11, 14],
[ 4, 5],
[ 3, 3.5],
[ 6.5, 7]
]);
// Set chart options
var options = {
'title':'Age vs Weight',
'width':550,
'height':400,
'legend': 'none',
trendlines: { 0: {type: 'exponential'} } // Draw a trendline for data series 0.
};
// Instantiate and draw the chart.
var chart = new google.visualization.ScatterChart(document.getElementById('container'));
chart.draw(data, options);
}
google.charts.setOnLoadCallback(drawChart);
</script>
</body>
</html>Résultat
Vérifiez le résultat.