Google 圖表 - 基本蠟燭圖

以下是基本蠟燭圖的示例。蠟燭圖通常用於顯示收盤價和開盤價，它們疊加在總方差之上。蠟燭圖經常用來顯示股票的價值行為。此圖表中，對於開盤價低於收盤價（收益）的專案，繪有填充的框；對於開盤價高於收盤價（虧損）的專案，繪有空心框。我們已經在Google 圖表配置語法一章中瞭解了用來繪製此圖表的配置。下面讓我們來看看完整的示例。

配置

我們使用 CandlestickChart 類來顯示基於蠟燭的圖表。

//candlestick chart
var chart = new google.visualization.CandlestickChart
(document.getElementById('container'));

示例

googlecharts_candlestick_basic.htm

現場演示

<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']});     
      </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 = google.visualization.arrayToDataTable([
               ['Mon', 20, 28, 38, 45],
               ['Tue', 31, 38, 55, 66],
               ['Wed', 50, 55, 77, 80],
               ['Thu', 77, 77, 66, 50],
               ['Fri', 68, 66, 22, 15]
               // Treat first row as data as well.
            ], true);
              
            // Set chart options
            var options = {legend: 'none'};

            // Instantiate and draw the chart.
            var chart = new google.visualization.CandlestickChart(document.getElementById('container'));
            chart.draw(data, options);
         }
         google.charts.setOnLoadCallback(drawChart);
      </script>
   </body>
</html>

結果

驗證結果。

googlecharts_candlestick_charts.htm

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