{"id":611,"date":"2022-11-04T22:33:51","date_gmt":"2023-07-30T01:44:13","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/"},"modified":"2024-04-28T23:02:47","modified_gmt":"2024-04-28T15:02:47","slug":"pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/","title":{"rendered":"Pandas concat() \u7684\u4f8b\u5b50"},"content":{"rendered":"<p>Pandas\u7684concat()\u65b9\u6cd5\u7528\u4e8e\u8fde\u63a5\u50cfDataFrames\u548cSeries\u8fd9\u6837\u7684pandas\u5bf9\u8c61\u3002\u6211\u4eec\u53ef\u4ee5\u4f20\u9012\u5404\u79cd\u53c2\u6570\u6765\u6539\u53d8\u8fde\u63a5\u64cd\u4f5c\u7684\u884c\u4e3a\u3002<\/p>\n<h2>1. pandas.concat() \u8bed\u6cd5<\/h2>\n<p>concat()\u65b9\u6cd5\u7684\u8bed\u6cd5\u662f\uff1a<\/p>\n<pre class=\"post-pre\"><code>concat(objs, axis=0, join='outer', join_axes=None, ignore_index=False,\r\n           keys=None, levels=None, names=None, verify_integrity=False,\r\n           sort=None, copy=True)\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li>objs: a sequence of pandas objects to concatenate.<\/li>\n<li>join: optional parameter to define how to handle the indexes on the other axis. The valid values are \u2018inner\u2019 and \u2018outer\u2019.<\/li>\n<li>join_axes: deprecated in version 0.25.0.<\/li>\n<li>ignore_index: if True, the indexes from the source objects will be ignored and a sequence of indexes from 0,1,2\u2026n will be assigned to the result.<\/li>\n<li>keys: a sequence to add an identifier to the result indexes. It\u2019s helpful in marking the source objects in the output.<\/li>\n<li>levels: a sequence to specify the unique levels to create multiindex.<\/li>\n<li>names: names for the levels in the resulting hierarchical index.<\/li>\n<li>verify_integrity: Check whether the new concatenated axis contains duplicates. It\u2019s an expensive operation.<\/li>\n<li>sort: Sort non-concatenation axis if it is not already aligned when join is \u2018outer\u2019. Added in version 0.23.0<\/li>\n<li>copy: if False, don\u2019t copy data unnecessarily.<\/li>\n<\/ul>\n<p>\u63a8\u8350\u9605\u8bfb\uff1aPython Pandas\u6559\u7a0b<\/p>\n<h2>2. \u4f8b\u5b50\uff1a\u4f7f\u7528Pandas\u7684concat()\u51fd\u6570<\/h2>\n<p>\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff0c\u5c06\u4e24\u4e2aDataFrame\u5bf9\u8c61\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n<pre class=\"post-pre\"><code>import pandas\r\n\r\nd1 = {\"Name\": [\"Pankaj\", \"Lisa\"], \"ID\": [1, 2]}\r\nd2 = {\"Name\": \"David\", \"ID\": 3}\r\n\r\ndf1 = pandas.DataFrame(d1, index={1, 2})\r\ndf2 = pandas.DataFrame(d2, index={3})\r\n\r\nprint('********\\n', df1)\r\nprint('********\\n', df2)\r\n\r\ndf3 = pandas.concat([df1, df2])\r\n\r\nprint('********\\n', df3)\r\n<\/code><\/pre>\n<p>\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n<pre class=\"post-pre\"><code>********\r\n      Name  ID\r\n1  Pankaj   1\r\n2    Lisa   2\r\n********\r\n     Name  ID\r\n3  David   3\r\n********\r\n      Name  ID\r\n1  Pankaj   1\r\n2    Lisa   2\r\n3   David   3\r\n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u62fc\u63a5\u662f\u6309\u884c\u8fdb\u884c\u7684\uff0c\u5373\u57280\u8f74\u4e0a\u8fdb\u884c\u3002\u6b64\u5916\uff0c\u6e90DataFrame\u5bf9\u8c61\u7684\u7d22\u5f15\u5728\u8f93\u51fa\u4e2d\u88ab\u4fdd\u7559\u3002<\/p>\n<h2>3. \u6cbf\u7740\u5217\u8fdb\u884c\u62fc\u63a5\uff0c\u53731\u8f74<\/h2>\n<pre class=\"post-pre\"><code>d1 = {\"Name\": [\"Pankaj\", \"Lisa\"], \"ID\": [1, 2]}\r\nd2 = {\"Role\": [\"Admin\", \"Editor\"]}\r\n\r\ndf1 = pandas.DataFrame(d1, index={1, 2})\r\ndf2 = pandas.DataFrame(d2, index={1, 2})\r\n\r\ndf3 = pandas.concat([df1, df2], axis=1)\r\nprint('********\\n', df3)\r\n<\/code><\/pre>\n<p>\u8f93\u51fa: \u7528\u6c49\u8bed\u4ee5\u672c\u5730\u65b9\u5f0f\u6539\u5199\u4ee5\u4e0b\u5185\u5bb9\uff0c\u53ea\u9700\u8981\u4e00\u79cd\u9009\u9879\u3002<\/p>\n<pre class=\"post-pre\"><code>********\r\n      Name  ID    Role\r\n1  Pankaj   1   Admin\r\n2    Lisa   2  Editor\r\n<\/code><\/pre>\n<p>\u5f53\u6e90\u5bf9\u8c61\u5305\u542b\u5bf9\u8c61\u7684\u4e0d\u540c\u79cd\u7c7b\u6570\u636e\u65f6\uff0c\u6309\u5217\u8fde\u63a5\u662f\u6709\u610f\u4e49\u7684\u3002<\/p>\n<h2>4. \u4e3a\u8fde\u63a5\u7684\u6570\u636e\u5e27\u7d22\u5f15\u5206\u914d\u952e\u3002<\/h2>\n<pre class=\"post-pre\"><code>d1 = {\"Name\": [\"Pankaj\", \"Lisa\"], \"ID\": [1, 2]}\r\nd2 = {\"Name\": \"David\", \"ID\": 3}\r\n\r\ndf1 = pandas.DataFrame(d1, index={1, 2})\r\ndf2 = pandas.DataFrame(d2, index={3})\r\n\r\ndf3 = pandas.concat([df1, df2], keys=[\"DF1\", \"DF2\"])\r\nprint('********\\n', df3)\r\n<\/code><\/pre>\n<p>\u4ea7\u51fa\uff1a<\/p>\n<pre class=\"post-pre\"><code>********\r\n          Name  ID\r\nDF1 1  Pankaj   1\r\n    2    Lisa   2\r\nDF2 3   David   3\r\n<\/code><\/pre>\n<h2>5. \u5ffd\u7565\u6e90DataFrame\u5bf9\u8c61\u5728\u8fde\u63a5\u4e2d\u7684\u4f5c\u7528\u3002<\/h2>\n<pre class=\"post-pre\"><code>d1 = {\"Name\": [\"Pankaj\", \"Lisa\"], \"ID\": [1, 2]}\r\nd2 = {\"Name\": \"David\", \"ID\": 3}\r\n\r\ndf1 = pandas.DataFrame(d1, index={10, 20})\r\ndf2 = pandas.DataFrame(d2, index={30})\r\n\r\ndf3 = pandas.concat([df1, df2], ignore_index=True)\r\nprint('********\\n', df3)\r\n<\/code><\/pre>\n<p>There are various ways to achieve effective output in Chinese as it is a highly versatile language. However, here is one possible way to paraphrase the given sentence natively in Chinese:<\/p>\n<p>\u7ed3\u679c\uff1a<\/p>\n<pre class=\"post-pre\"><code>********\r\n      Name  ID\r\n0  Pankaj   1\r\n1    Lisa   2\r\n2   David   3\r\n<\/code><\/pre>\n<p>\u8fd9\u5728\u6e90\u5bf9\u8c61\u7684\u7d22\u5f15\u4e0d\u592a\u6709\u610f\u4e49\u65f6\u4f1a\u5f88\u6709\u7528\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u5ffd\u7565\u5b83\u4eec\u5e76\u5c06\u9ed8\u8ba4\u7d22\u5f15\u5206\u914d\u7ed9\u8f93\u51fa\u7684DataFrame\u3002<\/p>\n<h2>6. \u53c2\u8003\u6587\u732e<\/h2>\n<ul class=\"post-ul\">\n<li>pandas.concat() API Doc<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Pandas\u7684concat()\u65b9\u6cd5\u7528\u4e8e\u8fde\u63a5\u50cfDataFrames\u548cSeries\u8fd9\u6837\u7684pandas\u5bf9\u8c61\u3002\u6211\u4eec\u53ef\u4ee5 [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-611","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pandas concat() \u7684\u4f8b\u5b50 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-\u7684\u4f8b\u5b50\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pandas concat() \u7684\u4f8b\u5b50\" \/>\n<meta property=\"og:description\" content=\"Pandas\u7684concat()\u65b9\u6cd5\u7528\u4e8e\u8fde\u63a5\u50cfDataFrames\u548cSeries\u8fd9\u6837\u7684pandas\u5bf9\u8c61\u3002\u6211\u4eec\u53ef\u4ee5 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-\u7684\u4f8b\u5b50\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-30T01:44:13+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-28T15:02:47+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u5b87\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u5b87\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/\",\"name\":\"Pandas concat() \u7684\u4f8b\u5b50 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-07-30T01:44:13+00:00\",\"dateModified\":\"2024-04-28T15:02:47+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/1a6ecd3d914d22a5ac32791ffc1fbd8e\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pandas concat() \u7684\u4f8b\u5b50\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/1a6ecd3d914d22a5ac32791ffc1fbd8e\",\"name\":\"\u6e05, \u5b87\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/4b2016c18459a605fc469c7566608f5686491baa112d0871ee613f61b7210565?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/4b2016c18459a605fc469c7566608f5686491baa112d0871ee613f61b7210565?s=96&d=mm&r=g\",\"caption\":\"\u6e05, \u5b87\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyu\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Pandas concat() \u7684\u4f8b\u5b50 - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-\u7684\u4f8b\u5b50\/","og_locale":"zh_CN","og_type":"article","og_title":"Pandas concat() \u7684\u4f8b\u5b50","og_description":"Pandas\u7684concat()\u65b9\u6cd5\u7528\u4e8e\u8fde\u63a5\u50cfDataFrames\u548cSeries\u8fd9\u6837\u7684pandas\u5bf9\u8c61\u3002\u6211\u4eec\u53ef\u4ee5 [&hellip;]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-\u7684\u4f8b\u5b50\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-07-30T01:44:13+00:00","article_modified_time":"2024-04-28T15:02:47+00:00","author":"\u6e05, \u5b87","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6e05, \u5b87","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/","name":"Pandas concat() \u7684\u4f8b\u5b50 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-07-30T01:44:13+00:00","dateModified":"2024-04-28T15:02:47+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/1a6ecd3d914d22a5ac32791ffc1fbd8e"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"Pandas concat() \u7684\u4f8b\u5b50"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/1a6ecd3d914d22a5ac32791ffc1fbd8e","name":"\u6e05, \u5b87","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/4b2016c18459a605fc469c7566608f5686491baa112d0871ee613f61b7210565?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4b2016c18459a605fc469c7566608f5686491baa112d0871ee613f61b7210565?s=96&d=mm&r=g","caption":"\u6e05, \u5b87"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyu\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/pandas-concat-%e7%9a%84%e4%be%8b%e5%ad%90\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=611"}],"version-history":[{"count":3,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/611\/revisions"}],"predecessor-version":[{"id":110360,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/611\/revisions\/110360"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}