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<?php
include("header_new.inc");
include("input_validate.php");
if($_GET["My_key"]!="")
$keyval=valid_keyval($_GET["My_key"]);
if($_POST["My_key"]!="")
$keyval=valid_keyval($_POST["My_key"]);
?>
<?php
$varName = "";
$varNameErr = "";
$nm_folds="";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$nm_folds = (int)$_POST['nm_folds'];
if (empty($_POST["varName"])) {
$varNameErr = "Entering a variable name is required";
} else {
// $varName = test_input($_POST["varName"]);
$varName = valid_input($_POST["varName"]);
$varNameErr = "1";
// check if name only contains letters and whitespace
// if (!preg_match("/^[\w]*$/",$varName)) {
// $varNameErr = "The input string contains characters that are not allowed";
// }
}
}
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
<!-- Site navigation menu -->
<ul class="navbar2">
<li><p>Network ID:<br><?php print($keyval);?></p></li>
</ul>
<ul class="navbar">
<li><a href="javascript:void(0);"
NAME="Network" title="Network" onClick=window.open("layout.php?My_key=<?php print($keyval);?>","_self");>Return to network</a>
<li><a href="javascript:void(0);"
NAME="CV_predictions" title="CV_pred" onClick=window.open("cv_predictions.php?My_key=<?php print($keyval);?>","_self");>Return to validation and predictions menu</a>
<li><a href="help.php">Help</a>
<li><a href="home.php">Home</a>
</ul>
<div id="outer">
<!-- Main content -->
<?php
$filename1="./data/".$keyval."kfoldCV.txt";
$filename2="./data/".$keyval."kfoldCV_temp.txt";
if(file_exists($filename2))
{?>
<br>
<h2> k-fold cross-validation results are being calculated</h2>
<br>
<?php
}
else if(file_exists($filename1))
{?>
<br>
<h2> <a href=<?php $d="./data/".$keyval."kfoldCV.txt"; print($d);?>>View cross-validation results</a></h2>
<br>
<h3>Perform k-fold cross-validation of another network variable</h3>
<p align="justify">
Enter the name of variable and number of folds below to validate predictions of that variable.
<br>
</p>
<FORM METHOD="post" ACTION="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
Variable name:<INPUT TYPE="text" name="varName" value="<?php echo $varName;?>" style="padding: 2px 5px; border: 2px solid; border-color: black black black black; font-family: Georgia, ..., serif; font-size: 18px; display: block; height: 30px; width: 300px;">
<span class="error"> <?php if($varNameErr!="1") {echo $varNameErr;};?></span>
<br>
Number of folds:<br><SELECT NAME="nm_folds">
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
</select>
<input type='hidden' name='My_key' value='<?php print($keyval)?>'>
<br><br><input type="submit" name="submit" value="Submit" style="display: block; height: 30px; width:100px; font-family: Georgia, ..., serif; font-size: 16px;">
</FORM>
<br>
<?php
} else {
?>
<h2>Perform k-fold cross-validation of network</h2>
<p align="justify">
To perform cross-validation, enter the name of the variable <br>that you want to test the predictions of and the number <br>of folds that the data should be separated into below.
<br>
<FORM METHOD="post" ACTION="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
Variable Name:<INPUT TYPE="text" name="varName" value="<?php echo $varName;?>"
style="padding: 2px 5px; border: 2px solid; border-color: black black black black; font-family: Georgia, ..., serif; font-size: 18px; display: block; height: 30px; width: 300px;">
<span class="error"> <?php if($varNameErr!="1") {echo $varNameErr;};?></span>
<br>
Number of folds:<br><SELECT NAME="nm_folds">
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
</select>
<input type='hidden' name='My_key' value='<?php print($keyval)?>'>
<br><br><input type="submit" name="submit" value="Submit" style="display: block; height: 30px; width:100px; font-family: Georgia, ..., serif; font-size: 16px;">
</FORM>
</p>
<br>
<?php
}
if($nm_folds!="")
{
$command = './run_kfold '.$keyval.' '.$varName.' '.$nm_folds;
$output = shell_exec("$command > /dev/null 2 > /dev/null &");
$pred_link='cv_predictions.php?My_key='.$keyval;
sleep(1);
echo "<br>";
echo "Calculation submitted";
echo "<br>";
echo "<a href=$pred_link>Click to return to cross-validation and predictions menu</a>";
}
?>
</div>
</body>
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