Javascript 如何从CSV文件制作气泡图?
因此,我有以下文件,Javascript 如何从CSV文件制作气泡图?,javascript,php,csv,google-visualization,bubble-chart,Javascript,Php,Csv,Google Visualization,Bubble Chart,因此,我有以下文件,data.csv。看起来是这样的: TestID,Cronbach,Percent Correct,Population 12416,0.866,0.17,26 12421,0.945,0.21,8 12385,0.777,0.40,258 12412,0.85,0.44,34 12407,0.831,0.45,48 [ ["Test ID", "Cronbach", "Percent Correct", "Population"], ["12416", 0.866, 0.
data.csv
。看起来是这样的:
TestID,Cronbach,Percent Correct,Population
12416,0.866,0.17,26
12421,0.945,0.21,8
12385,0.777,0.40,258
12412,0.85,0.44,34
12407,0.831,0.45,48
[
["Test ID", "Cronbach", "Percent Correct", "Population"],
["12416", 0.866, 0.17, 26],
["12421", 0.945, 0.21, 8],
["12385", 0.777, 0.40, 258],
["12412", 0.85, 0.44, 34],
["12407", 0.831, 0.45, 48]
]
我希望它看起来像这样:
TestID,Cronbach,Percent Correct,Population
12416,0.866,0.17,26
12421,0.945,0.21,8
12385,0.777,0.40,258
12412,0.85,0.44,34
12407,0.831,0.45,48
[
["Test ID", "Cronbach", "Percent Correct", "Population"],
["12416", 0.866, 0.17, 26],
["12421", 0.945, 0.21, 8],
["12385", 0.777, 0.40, 258],
["12412", 0.85, 0.44, 34],
["12407", 0.831, 0.45, 48]
]
有没有一种方法我可以用php制作一个转换代码,将我的CSV文件转换成上面的格式。我需要这个,因为我想把代码放到
Q:我该如何编写代码,将其转换为可接受的格式,以适合谷歌气泡图?以下示例演示如何解析csv文件内容:
function prepareChartData(data) {
var items = [];
var lines = data.split(/\r\n|\n/);
lines.forEach(function(line,i){
if(line.length > 0){
var item = line.split(',');
if(i > 0){
item[1] = parseFloat(item[1]);
item[2] = parseFloat(item[2]);
item[3] = parseInt(item[3]);
}
items.push(item);
}
});
return items;
}
结果
[
[
"TestID",
"Cronbach",
"Percent Correct",
"Population"
],
[
"12416",
0.866,
0.17,
26
],
[
"12421",
0.945,
0.21,
8
],
[
"12385",
0.777,
0.4,
258
],
[
"12412",
0.85,
0.44,
34
],
[
"12407",
0.831,
0.45,
48
]
]
完整示例
google.load("visualization", "1", { packages: ["corechart"] });
google.setOnLoadCallback(function(){
readChartData()
.then(prepareChartData)
.done(drawChart);
});
function drawChart(items) {
var data = google.visualization.arrayToDataTable(items);
var options = {
title: 'Chart'
};
var chart = new google.visualization.BubbleChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
function readChartData(complete)
{
return $.ajax({
type: "GET",
url: "data.csv",
dataType: "text"
});
}
function prepareChartData(data) {
var items = [];
var lines = data.split(/\r\n|\n/);
lines.forEach(function(line,i){
if(line.length > 0){
var item = line.split(',');
if(i > 0){
item[1] = parseFloat(item[1]);
item[2] = parseFloat(item[2]);
item[3] = parseInt(item[3]);
}
items.push(item);
}
});
return items;
}
非常感谢你!我非常感激。这是两天前回复的,帖子被关闭,而不是被编辑。甚至还提供了一个功能齐全的演示。