我从表格中提取反馈并通过将其转换为以下格式进行分析:
字符串:食物很糟糕
主导:负，分数:数组 ( [neg] => 0.5 [neu] => 0.25 [pos] => 0.25 )
字符串:这辆车很糟糕
主导:负，分数:数组 ( [neg] => 0.5 [neu] => 0.25 [pos] => 0.25 )
字符串:桥非常糟糕
主导:负，分数:数组 ( [neg] => 0.5 [neu] => 0.25 [pos] => 0.25 )
我想做的就是计算负值、正值和中性的所有值，并将它们呈现在饼图中
这是我想使用数组元素开发的图表示例
最佳答案
你可以像下面这样做:-
<?php
$a = Array ( 'neg' => 0.5, 'neu' => 0.25, 'pos' => 0.25 );
$key = array_keys($a); //get te keys of the array
$b = Array ( 'neg' => 0.5, 'neu' => 0.25, 'pos' => 0.25 );
$c= Array ( 'neg' => 0.5, 'neu' => 0.25, 'pos' => 0.25 );
$d = array_map(function () {
return (array_sum(func_get_args())/3)*100; // add all three array corresponding keys values and convert them to percentage
}, $a, $b,$c);
$d = array_combine($key,$d); // now combine key array and sum array
$d = array('Sentiment'=>'rating') + $d; // add which type of chart it is as a key value pair
$rating_data = array(); //create a new array variable
foreach($d as $key=>$val){
$rating_data[] = array($key,$val); //convert summ array to key,value sub-array and assig it to new array
}
$encoded_data = json_encode($rating_data); //json encode the new array
?>
<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script type="text/javascript">
google.load("visualization", "1", {packages:["corechart"]});
google.setOnLoadCallback(drawChart);
function drawChart()
{
var data = google.visualization.arrayToDataTable(
<?php echo $encoded_data; ?>
);
var options = {
title: "Sentiment vs Rating"
};
var chart = new google.visualization.PieChart(document.getElementById("employee_piechart"));
chart.draw(data, options);
}
</script>
<style>
body
{
margin:0 auto;
padding:0px;
text-align:center;
width:100%;
font-family: "Myriad Pro","Helvetica Neue",Helvetica,Arial,Sans-Serif;
background-color:#FAFAFA;
}
#wrapper
{
margin:0 auto;
padding:0px;
text-align:center;
width:995px;
}
#wrapper h1
{
margin-top:50px;
font-size:45px;
color:#585858;
}
#wrapper h1 p
{
font-size:18px;
}
#employee_piechart
{
padding:0px;
width:600px;
height:400px;
margin-left:190px;
}
</style>
</head>
<body>
<div id="employee_piechart" style="width: 900px; height: 500px;"></div>
</body>
</html>
我本地端的输出:- http://prntscr.com/fk71m2
关于javascript - 从数组值中获取值以形成聊天，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44566152/