我正在尝试使用R包RecordLinkage，除了包two之外，我还使用包作者的articles documentation作为使用指南。
我正在使用2个大型数据集（100k +行），我希望将其链接起来，因此我使用的是围绕S4类RLBigDataLinkage构建的包的那些元素。
首先在R中运行以下行：
>library('RecordLinkage')
>data1 <- as.data.frame(#source)
>data2 <- as.data.frame(#source)
>rpairs <- RLBigDataLinkage(data1, data2, strcmp = 2:8, exclude = 9:10)
这很好（虽然需要一些时间），并编写必要的.ff文件来处理大型数据集。
如果我再尝试：
>rpairs <- epiWeights(rpairs)
或者：
>rpairs <- epiWeights(rpairs, e = 0.01, f = getFrequencies(rpairs))
然后当我跑：
>summary(rpairs)
我收到错误消息：
Error in dbGetQuery(object@con, "select count(*) from data1") :
error in evaluating the argument 'conn' in selecting a method for function 'dbGetQuery': Error: no slot of name "con" for this object of class "RLBigDataLinkage"
另一方面，如果我跑：
>result <- epiClassify(rpairs, 0.5)
>getTable(result)
我收到错误消息：
Error in table.ff(object@data@pairs$is_match, object@prediction, useNA = "ifany") :
Only vmodes integer currently allowed - are you sure ... contains only factors or integers?
我显然遗漏了一些关于如何处理这些物品的事情。有没有人有这个包看到我的错误的经验？谢天谢地。
答案 0 :(得分：0)
当'rpairs'的类型为'RLBigDataLinkage'时使用<?php
ob_start();
$host="localhost"; // Host name
$username="root"; // Mysql username
$password="****"; // Mysql password
$db_name="Username"; // Database name
$tbl_name="Name"; // Table name
// Connect to server and select databse.
$conn = mysqli_connect($host, $username, $password, $db_name) or die(mysqli_error($conn));
if (isset($_POST['submit']))
{
// Define $username
$username = $_POST['user_name'];
$sql = "SELECT * FROM $tbl_name WHERE Name='$username'";
$result = mysqli_query($conn, $sql);
// Mysql_num_row is counting table row
$count = mysqli_num_rows($result);
if ($count > 0 )
{
// get data from user
$data = mysqli_fetch_array($result, MYSQLI_ASSOC);
require 'PHPMailer-master/PHPMailerAutoload.php';
$mail = new PHPMailer;
$mail->IsSMTP(); // telling the class to use SMTP
$mail->Host = "****"; // SMTP server // enables SMTP debug information
$mail->SMTPAutoTLS = false;
$mail->SMTPSecure = false;
$mail->SMTPAuth = true; // enable SMTP authentication
$mail->Host = "****"; // sets the SMTP server
$mail->Port = 587; // set the SMTP port for the GMAIL server
$mail->Username = "****"; // SMTP account username
$mail->Password = "****"; // SMTP account password
$mail->From = "Test";
$mail->FromName = "Test";
$mail->AddAddress($username, "");
$mail->isHTML(true);
$mail->Subject = 'Your Company Details';
$mail->Body = "Your company details are: Name: = " . $data['Name'] . ", Surname: " . $data['Surname'] . ", Cellphone: " . $data['Cellphone'];
if(!$mail->Send())
{
echo 'Message could not be sent.';
echo 'Mailer Error: ' . $mail->ErrorInfo;
exit();
}
else
{
echo 'Email Sent Successfully!';
}
}
ob_end_flush();
?>
，您将获得rpairs的摘要。