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question8.php
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<html>
<head>
<title>JOSAA Analysis</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no" />
<!-- <link rel="stylesheet" href="assets/css/main.css" /> -->
<link rel="stylesheet" href="assets/css/q1_1.css" />
<link rel="stylesheet" href="assets/css/proj.css" />
<noscript><link rel="stylesheet" href="assets/css/noscript.css" /></noscript>
</head>
<body class="is-preload">
<!-- Wrapper -->
<div id="wrapper">
<!-- Header -->
<header id="header">
<div class="inner">
<!-- Logo -->
<a href="index.html" class="logo">
<span class="symbol"><img src="images/logo.svg" alt="" /></span><span class="title">JOSAA DATA ANALYSIS</span>
</a>
<!-- Nav -->
<!-- <nav>
<ul>
<li><a href="#menu">Menu</a></li>
</ul>
</nav> -->
<nav >
<!-- <a href="try.html"><img class="navimg" src="images/cropped.png" width=50% height=50%></a> -->
<div style = "float:right" >
<ul>
<!-- dropdown -->
<div class="dropdown">
<button class="dropbtn"><li class="item"><p class = "pred">Predictors</p></li>
<i class="fa fa-caret-down"></i>
</button>
<div class="dropdown-content">
<a href="councelling_advisor.php">College Advisor</a>
<a href="closing_rank_predictor.php">Rank Predictor</a>
</div>
</div>
<!-- dropdown -->
<!-- <li class="item"><a href="college-advisor.php">Predictors</a></li> -->
<li class="item"><a href="team.html">About Team</a></li>
</ul>
</div>
</nav>
</div>
</header>
<div class="question">
<h1>Variance of ranks of Students in IITs</h1>
</div>
<div style="display: flex">
<form method="post" class="dropdowns">
<label for="year">Select Year:</label>
<select name="year">
<option value="">Select</option>
<option value="2022">2022 </option>
<option value="2021">2021</option>
<option value="2020">2020</option>
<option value="2019">2019</option>
<option value="2018">2018</option>
</select>
<br>
<label for="category">Select Category:</label>
<select name="category">
<option value="">Select</option>
<option value="OPEN">OPEN </option>
<option value="OBC-NCL">OBC-NCL</option>
<option value="EWS">EWS</option>
<option value="SC">SC</option>
<option value="ST">ST</option>
</select>
<br>
<button type="submit" name="submit">Enter</button>
</form>
<div class = "chartcont">
<?php
$host = 'localhost';
$username = 'devanshu';
$password = 'passwords';
$dbname = 'mydb';
$conn = new mysqli($host, $username, $password, $dbname);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
if(isset($_POST['submit'])){
$cat = $_POST['category'];
$year = $_POST['year'];
$sql = "SELECT MAX(C.CR) - MIN(C.OR_) as variance, I.institute as city FROM rank_data C, program P, iit I WHERE C.seattype = '{$cat}' and C.Year_ = '{$year}' and P.p_code = C.P_code and I.I_code = C.I_code GROUP BY C.I_code ORDER BY variance DESC";
$result = $conn->query($sql);
$conn->close();
$cities = array();
$variance = array();
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
array_push( $variance , (int)$row['variance'] );
array_push( $cities , $row['city'] );
}
} else {
echo "0 results";
}
$cities = json_encode($cities);
$variance = json_encode($variance);
$cat = json_encode($cat);
$year = json_encode($year);
}
?>
<canvas class="charts" id="myChart"> </canvas>
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<script src="scripts.js"></script>
<script>
const ctx = document.getElementById('myChart');
var cities = <?php echo $cities ?>;
var variance = <?php echo $variance ?>;
var cat = <?php echo $cat ?>;
var year = <?php echo $year ?>;
var hexColors = ['#FFC300', '#FF5733', '#C70039', '#900C3F', '#581845', '#008000', '#6B8E23', '#ADD8E6', '#87CEFA', '#1E90FF', '#8A2BE2', '#FF1493', '#FFD700', '#FF8C00', '#FF69B4', '#FFA07A', '#00BFFF', '#20B2AA', '#4B0082', '#BA55D3', '#7B68EE', '#00FFFF', '#FF00FF'];
new Chart(ctx, {
type: 'bar',
data: {
labels: cities,
datasets: [{
label: '',
data: variance,
backgroundColor : hexColors,
borderColor: hexColors,
hoverOffset: 4
}]
},
options: {
plugins: {
title: {
display: true,
text: 'Variance of Ranks of ' + cat + ' Category in the Year ' + year,
font: {
size: 25,
weight: 'bold'
},
padding: 8,
fullSize: true,
}
},
maintainAspectRatio: false,
scales: {
y: {
beginAtZero: true
}
}
}
});
</script>
</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-3.4.1.js"></script>
<script src="assets/js/drop.js"></script>
</body>
</html>