将df1列1与df2中的所有列进行比较，返回df2的索引
我是大熊猫的新手很可能忽略了一些东西，但我一直在寻找并且还没有找到任何有用的东西。
我想要做的就是这个。我有2个数据帧。 df1只有1列和未知行数。 df2也有未知的行数，每个索引的列数也是未知的。
Example:
df1:
0 1117454
1 1147637
2 1148945
3 1149662
4 1151543
5 1151545
6 1236268
7 1236671
8 1236673
...
300 1366962
df2:
1 2 3 4 5 6 7
8302813476 1375294 1375297 1375313 1375318 1375325 1375330 1375331
8302813477 1317422 1363270 1363288 1363262 None None None
8302813478 1187269 1187276 1149662 1147843 1147639 1236650 1236656
所以我想要的是检查df1列1 - n的所有df2值，如果与df1中的任何值匹配，则标记{{1}的索引如果是，那么它是假的。
2 个答案:
答案 0 :(得分：3)
我认为您可以使用isin来测试从Series df2创建的Series与df1从一列df3 = df2.stack().isin(df1.squeeze()).unstack()
print (df3)
1 2 3 4 5 6 7
8302813476 False False False False False False False
8302813477 False False False False False False False
8302813478 False False True False False False False
创建的匹配由stack。最后重塑squeeze：
True然后找到unstack之前至少有一个a = df3.any(axis=1)
print (a)
8302813476 False
8302813477 False
8302813478 True
dtype: bool
的所有值：
print (a[a].index)
Int64Index([8302813478], dtype='int64')
最后any：
squeeze另一种解决方案是df1['col'].unique()使用df3 = df2.stack().isin(df1['col'].unique()).unstack()
print (df3)
1 2 3 4 5 6 7
8302813476 False False False False False False False
8302813477 False False False False False False False
8302813478 False False True False False False False
，谢谢boolean indexing：
squeeze---
我更喜欢df1，但同样的输出很简单，只需选择df3 = df2.stack().isin(df1['col']).unstack()
print (df3)
1 2 3 4 5 6 7
8302813476 False False False False False False False
8302813477 False False False False False False False
8302813478 False False True False False False False
列：
<html>
<?php
session_start();
if (empty($_SESSION['h_cost'])) {$_SESSION['h_cost'] = $_SESSION['cost'];}
if (isset($_SESSION['cost']) and $_SESSION['cost'] != '') {
require("system/config.php");
$ip = GetRealIp();
if (isset($_GET['pay'])) {
$expire_time = time() + 259200;
$discode = '';
$now = time();
$buy_id = "$now";
for ($n=0;$n<20;$n++) {
$buy_id .= rand(1,9);
}
if (intval($_SESSION['h_cost']) < 100) {
$sql = "INSERT INTO $prefix"."buy_info (ip,email,name,phone,link,cost,expire,discode,product,buy_id,zarin_code,ok,date) VALUES ('" . $ip . "','" . $_GET['email'] . "','" . $_GET['name'] . "','" . $_GET['phone'] . "','" . $_SESSION['url'] . "','" . $_SESSION['h_cost'] . "','" . $expire_time . "','" . $discode . "','" . $_SESSION['title'] . "','" . $buy_id . "','N','" . "1" . "','" . date("Y/m/d") . "')";
$act = mysql_query($sql) or die(mysql_error());
// Remote Connect
mysql_close();
define("re_adress","***");
define("re_username","***");
define("re_password","***");
define("re_db_name","***");
$prefix = "mby_";
$con=mysql_connect(re_adress,re_username,re_password);
mysql_query("SET NAMES 'utf8'", $con);
mysql_query("SET CHARACTER SET 'utf8'", $con);
mysql_query("SET character_set_connection = 'utf8'", $con);
mysql_select_db(re_db_name,$con) or die (mysql_error());
$sql = "INSERT INTO $prefix"."buy_info (ip,email,name,phone,link,cost,expire,discode,product,buy_id,zarin_code,ok,date) VALUES ('" . $ip . "','" . $_GET['email'] . "','" . $_GET['name'] . "','" . $_GET['phone'] . "','" . $_SESSION['url'] . "','" . $_SESSION['h_cost'] . "','" . $expire_time . "','" . $discode . "','" . $_SESSION['title'] . "','" . $buy_id . "','N','" . "1" . "','" . date("Y/m/d") . "')";
$act = mysql_query($sql) or die(mysql_error());
$_SESSION['buy_id'] = $buy_id;
$_SESSION['email'] = $_GET['email'];
$_SESSION['h_cost'] = $_GET['h_cost'];
Header('Location: /payment-result.php');
exit();
}
// Zarrin pall part
$MerchantID = '***'; //Required
$Amount = $_SESSION['h_cost']; //Amount will be based on Toman - Required
$Description = $_SESSION['title']; // Required
$Email = $_GET['email']; // Optional
$Mobile = $_GET['phone']; // Optional
$CallbackURL = $site_adress.'/payment-result.php'; // Required
$client = new SoapClient('https://www.zarinpal.com/pg/services/WebGate/wsdl', ['encoding' => 'UTF-8']);
$result = $client->PaymentRequest(
[
'MerchantID' => $MerchantID,
'Amount' => $Amount,
'Description' => $Description,
'Email' => $Email,
'Mobile' => $Mobile,
'CallbackURL' => $CallbackURL,
]
);
//Redirect to URL You can do it also by creating a form
if ($result->Status == 100) {
$sql = "INSERT INTO $prefix"."buy_info (ip,email,name,phone,link,cost,expire,discode,product,buy_id,ok,date) VALUES ('" . $ip . "','" . $_GET['email'] . "','" . $_GET['name'] . "','" . $_GET['phone'] . "','" . $_SESSION['url'] . "','" . $_SESSION['h_cost'] . "','" . $expire_time . "','" . $discode . "','" . $_SESSION['title'] . "','" . $buy_id . "','" . "0" . "','" . date("Y/m/d") . "')";
$act = mysql_query($sql) or die(mysql_error());
// Remote Connect
mysql_close();
define("re_adress","***");
define("re_username","***");
define("re_password","***");
define("re_db_name","***");
$prefix = "mby_";
$con=mysql_connect(re_adress,re_username,re_password);
mysql_query("SET NAMES 'utf8'", $con);
mysql_query("SET CHARACTER SET 'utf8'", $con);
mysql_query("SET character_set_connection = 'utf8'", $con);
mysql_select_db(re_db_name,$con) or die (mysql_error());
$sql = "INSERT INTO $prefix"."buy_info (ip,email,name,phone,link,cost,expire,discode,product,buy_id,ok,date) VALUES ('" . $ip . "','" . $_GET['email'] . "','" . $_GET['name'] . "','" . $_GET['phone'] . "','" . $_SESSION['url'] . "','" . $_SESSION['h_cost'] . "','" . $expire_time . "','" . $discode . "','" . $_SESSION['title'] . "','" . $buy_id . "','" . "0" . "','" . date("Y/m/d") . "')";
$act = mysql_query($sql) or die(mysql_error());
mysql_close();
$_SESSION['buy_id'] = $buy_id;
$_SESSION['email'] = $_GET['email'];
Header('Location: https://www.zarinpal.com/pg/StartPay/'.$result->Authority);
//برای استفاده از زرین گیت باید ادرس به صورت زیر تغییر کند:
//Header('Location: https://www.zarinpal.com/pg/StartPay/'.$result->Authority.'/ZarinGate');
} else {
echo'ERR: '.$result->Status;
}
}
else
{
$_SESSION['h_cost'] = $_SESSION['cost'];
$_SESSION['discode'] = NULL;
}
}
else
{
//header("location: /404.php");
}
?>
<head>
<title>سبد خرید</title>
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<meta http-equiv="Content-Language" content="Fa">
<!--FavIcon-->
<link rel="icon" type="image/png" href="img/favicon.png">
<link rel="stylesheet" href="css/cart.css" />
<link rel='stylesheet' href='css/font-style.css' >
<link rel="stylesheet" href="css/font-awesome.min.css" >
<link rel="stylesheet" href="css/bootstrap.min.css" >
<link rel="stylesheet" href="css/style.css" >
</head>
<body>
<div class="header-area">
<div class="container">
<div class="row">
<div class="col-md-8">
<div class="user-menu">
<ul>
<li><a href="#"><i class="fa fa-user"></i>ورود</a></li>
<li><a href="#"><i class="fa fa-pencil-square-o"></i> ثبت نام</a></li>
<li><a href="#"><i class="fa fa-phone"></i>ارتباط با ما</a></li>
<li><a href="#"><i class="fa fa-briefcase"></i>همکاری</a></li>
</ul>
</div>
</div>
<div style="width: 300px;float: right;text-align: right;height: 38px;line-height: 38px;" class="col-md-9"><?php echo $psubtitle; ?> <i style="font-size: 10px;" class="fa fa-star"></i></div>
</div>
</div>
</div> <!-- End header area -->
<section class="adjuster">
<a href="http://mobyar.com"><img src="img/logo.png" style="border-bottom: #999999 dashed 1px;position: absolute;top: 15px;left:10px;width: 200px;height: 95px;" alt="" /></a>
<b style="border-bottom: #999999 dashed 1px;font-weight: normal;position: absolute;width: 580px; height: 100px;line-height: 130px;text-align: center;font-size: 25px;top: 10px;" >فاکتور فروش خدمات موب یار</b>
<table>
<td style="background: #5a88ca;color: #fff;font-weight: normal;" width="600">نام محصول</td><td style="background: #5a88ca;color: #fff;font-weight: normal;" width="200">قیمت</td><tr></tr>
<td class="p_title"><?php echo $_SESSION['title'] ?></td><td><?php echo $_SESSION['cost'] ?> ت</td><tr></tr>
</table>
<form style="display: block" action="" id="pay_form" method="get">
<input type="text" name="discode" id="discode" class="discode_input" placeholder="کد تخفیف" />
<input type="button" name="discode_do" id="discode_do" class="discode_do" value="استفاده" /><img class="dd_w" src="img/w8.gif" alt="w8" />
<div class="total-cost">مبلغ قابل پرداخت : <i id="mqp" style="font-style: normal"><?php echo $_SESSION['h_cost'] ?></i> ت</div>
<input name="name" placeholder="نام کامل" type="text" /><div class="cls"></div>
<input name="email" id="email" placeholder="آدرس ایمیل*" type="email" /><div class="cls"></div>
<input name="phone" style=" position: relative;top: 4px;" placeholder="شماره تماس" type="text" />
<input type="submit" name="pay" class="pay" value="پرداخت">
</form>
<div class="discode_result">
<div class="dr_c"></div>
<b>کد تخفیف اعمال شد !</b>
<br>
<br>
<i>مبلغ پرداختی شما شامل x % تخفیف شده است</i>
</div>
<div class="cls"></div>
</section>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/cart.js"></script>
</body>
</html>
答案 1 :(得分：3)
作为一个有趣的numpy替代
l1 = df1.values.ravel()
l2 = df2.values.ravel()
pd.DataFrame(
np.equal.outer(l1, l2).any(0).reshape(df2.values.shape),
df2.index, df2.columns
)
或使用set，list和理解
l1 = set(df1.values.ravel().tolist())
l2 = df2.values.ravel().tolist()
pd.DataFrame(
np.array([bool(l1.intersection([d])) for d in l2]).reshape(df2.values.shape),
df2.index, df2.columns
)
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