我正在尝试制作一个Google图表信息中心并尝试使用以下代码:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>
Google Visualization API Sample
</title>
<script type="text/javascript" src="//www.google.com/jsapi"></script>
<script type="text/javascript">
google.load('visualization', '1.1', {packages: ['controls']});
</script>
<script type="text/javascript">
function drawVisualization() {
var listOfValues = document.getElementById("id1").value ;
var temp2 = null;
var temp3 = null ;
var longArray = ['Year','Positive','Negative','Neutral','Comments','Status','Score'];
var shortArrays = [], m, len;
var arrayOfArray = [];
var temp = listOfValues.split("-");
for(var i=0; i<temp.length; i++){
temp2 = temp[i].split(',');
if(temp2.length == 7){
for(var j=0; j<temp2.length;j++){
temp3 = temp2[j].split(',');
longArray.push(temp3[0]);
}
}
}
for (m = 0, len = longArray.length; m < len; m += 7) {
shortArrays.push(longArray.slice(m, m + 7));
console.log(shortArrays);
}
for (m = 0, len = shortArrays.length; m < len; m++) {
arrayOfArray.push(shortArrays[m]);
}
// Prepare the data
var data = google.visualization.arrayToDataTable(arrayOfArray);
// Define a category picker control for the Gender column
var categoryPicker = new google.visualization.ControlWrapper({
'controlType': 'CategoryFilter',
'containerId': 'control2',
'options': {
'filterColumnLabel': 'Year',
'ui': {
'labelStacking': 'vertical',
'allowTyping': false,
'allowMultiple': true
}
}
});
// Define a category picker control for the Gender column
var categoryPicker2 = new google.visualization.ControlWrapper({
'controlType': 'CategoryFilter',
'containerId': 'categoryPick2',
'options': {
'filterColumnLabel': 'Status',
'ui': {
'labelStacking': 'vertical',
'allowTyping': false,
'allowMultiple': true
}
}
});
//Define a combo chart
var combo = new google.visualization.ChartWrapper({
'chartType':'ComboChart',
'containerId':'chart2',
'options': {
'title' : 'Sentiment Analysis',
// setting the "isStacked" option to true fixes the spacing problem
'isStacked': false,
'height': 300,
'width': 300,
'vAxis': {title: "Sentiment"},
'hAxis': {title: "Month"},
'seriesType': "bars",
'series': {5: {type: "line"}}
},
// 'view': {'columns': [0, 1,2,3]}
'view': {
// set the columns to use in the chart's view
// calculated columns put data belonging to each country in the proper column
columns: [0,1,2,3]
}
});
// Define a table
var table = new google.visualization.ChartWrapper({
'chartType': 'Table',
'containerId': 'chart4',
'options': {
'view': {'columns': [1,2]},
'width': '700px',
'height':'100px'
}
});
// Define a table
var table2 = new google.visualization.ChartWrapper({
'chartType': 'Table',
'containerId': 'table2',
'options': {
'width': '200px'
},
'view': {'columns': [0,5]}
});
//Define a line chart
var line = new google.visualization.ChartWrapper({
'chartType':'LineChart',
'containerId':'lineChart',
'options': {
'label':'Sentiment Analysis'
},
'view': {'columns': [4,6]}
});
// Create a dashboard
// new google.visualization.Dashboard(document.getElementById('dashboard'));
new google.visualization.Dashboard(document.getElementById('dashboard')).
// Establish bindings, declaring the both the slider and the category
// picker will drive both charts.
bind([categoryPicker2], [line,table2]).
bind([categoryPicker], [combo,table]).
// Draw the entire dashboard.
draw(data);
//draw(data2);
google.setOnLoadCallback(drawVisualization);
</script>
</head>
<body style="font-family: Arial;border: 0 none;">
<div id="dashboard">
<table>
<tr style='vertical-align: top'>
<td style='width: 300px; font-size: 0.9em;'>
<div id="control1"></div>
<div id="control2"></div>
<div id="control3"></div>
<div id="categoryPick2"></div>
</td>
<td style='width: 600px'>
<div style="float: left;" id="chart1"></div>
<div style="float: left;" id="chart2"></div>
<div style="float: right;" id="chart3"></div>
<div style="float: right;" id="chart4"></div>
<div style="float: right;" id="lineChart"></div>
<div style="float: right;" id="table2"></div>
</td>
</tr>
</table>
<input type="hidden" id="id1" value=" ${listVal}" />
<input type="hidden" id="id2" value=" ${header1}" />
</div>
<div id="chart_div2" ></div>
</body>
</html>
执行此代码后,我清楚地得到表格数据;但是,它没有正确显示图表(我使用了组合图和折线图)。它抛出以下错误:
"Data column(s) for axis #0 cannot be of type string"
有人可以告诉你如何解决这个问题。
感谢。
当您提醒listOfValues时,您将获得以下值:
2010,84,65,45,脸谱,坏,12345-2011,64,75,85,脸谱,坏,2345 -
基本上这些是数据库中的两行,我用连字符分隔。如果您需要更多详细信息,请与我们联系。
答案 0 :(得分:5)
您的数据系列必须是&#34; number&#34;为了绘制图表(您的x轴数据可以是&#34;字符串&#34;)。由于您将字符串拆分为数组,因此数组元素都将是字符串。假设您的所有数据都是数字,则可以替换此行:
longArray.push(temp3[0]);
用这个:
longArray.push(parseFloat(temp3[0]));
或者,如果你的数据都是整数:
longArray.push(parseInt(temp3[0], 10));
[编辑:处理不同数据类型的更完整答案]
有两种方法可以解决这个问题。第一种方法是预先定义列数据类型:
var longArray = [
{label: 'Year', type: 'number'},
{label: 'Positive', type: 'number'},
{label: 'Negative', type: 'number'},
{label: 'Neutral', type: 'number'},
{label: 'Comments', type: 'string'},
{label: 'Status', type: 'string'},
{label: 'Score', type: 'number'}
];
输入数据时也可以进行原始类型检测:
for(var i=0; i<temp.length; i++){
temp2 = temp[i].split(',');
if(temp2.length == 7){
for(var j=0; j<temp2.length;j++){
// this does nothing except make temp2[j] into a 1-element array
// temp3[0] === temp2[j], since you split on ',' already
temp3 = temp2[j].split(',');
if (temp3[0] == parseInt(temp3[0])) {
longArray.push(parseInt(temp3[0]));
}
else if (temp3[0] == parseFloat(temp3[0])) {
longArray.push(parseFloat(temp3[0]));
}
else {
longArray.push(temp3[0]);
}
}
}
}
您可以将这两种方法结合使用以防万一滑倒。看到他们在这里工作:http://jsfiddle.net/asgallant/xLKcx/
顺便说一句,我建议清理代码 - 在构建数据数组的部分中有很多意大利面条代码。这是一个更简单的版本:http://jsfiddle.net/asgallant/xLKcx/1/