{"id":2405,"date":"2023-07-22T10:18:19","date_gmt":"2023-07-22T10:18:19","guid":{"rendered":"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/"},"modified":"2023-07-22T10:18:19","modified_gmt":"2023-07-22T10:18:19","slug":"concatenare-due-dataframe-panda","status":"publish","type":"post","link":"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/","title":{"rendered":"Come concatenare due pandas dataframes (con esempi)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u00c8 possibile utilizzare la seguente sintassi di base per concatenare due DataFrames panda:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df3 = pd. <span style=\"color: #3366ff;\">concat<\/span> ([df1, df2], ignore_index= <span style=\"color: #008000;\">True<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">L&#8217;esempio seguente mostra come utilizzare questa sintassi nella pratica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Esempio: come concatenare due DataFrames Pandas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Supponiamo di avere i seguenti due DataFrames panda:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#define DataFrames\n<span style=\"color: #000000;\">df1 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'A', 'A'],\n                    ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9],\n                    ' <span style=\"color: #ff0000;\">points<\/span> ': [11, 8, 10, 6]})\n\ndf2 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['B', 'B', 'B', 'B'],\n                    ' <span style=\"color: #ff0000;\">assists<\/span> ': [4, 4, 3, 7],\n                    ' <span style=\"color: #ff0000;\">points<\/span> ': [14, 11, 7, 6]})\n<span style=\"color: #008080;\">#view DataFrames\n<\/span><span style=\"color: #008000;\">print<\/span> (df1)\n\n  team assists points\n0 to 5 11\n1 to 7 8\n2 to 7 10\n3 to 9 6\n\n<span style=\"color: #008000;\">print<\/span> (df2)\n\n  team assists points\n0 B 4 14\n1 B 4 11\n2 B 3 7\n3 B 7 6<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Possiamo usare la seguente sintassi per concatenare i due DataFrame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#concatenate the DataFrames\n<\/span>df3 = pd. <span style=\"color: #3366ff;\">concat<\/span> ([df1, df2])\n\n<span style=\"color: #008080;\">#view resulting DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df3)\n\n  team assists points\n0 to 5 11\n1 to 7 8\n2 to 7 10\n3 to 9 6\n0 B 4 14\n1 B 4 11\n2 B 3 7\n3 B 7 6<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Il risultato \u00e8 un DataFrame che contiene i dati di entrambi i DataFrame.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Se desideri creare un nuovo indice durante la concatenazione di DataFrames, devi utilizzare l&#8217;argomento <strong>ignore_index<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#concatenate the DataFrames and ignore index\n<\/span>df3 = pd. <span style=\"color: #3366ff;\">concat<\/span> ([df1, df2], ignore_index= <span style=\"color: #008000;\">True<\/span> )\n\n<span style=\"color: #008080;\">#view resulting DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df3)\n\n  team assists points\n0 to 5 11\n1 to 7 8\n2 to 7 10\n3 to 9 6\n4 B 4 14\n5 B 4 11\n6 B 3 7\n7 B 7 6<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Si noti che l&#8217;indice del DataFrame risultante \u00e8 compreso tra 0 e 7.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota n. 1:<\/strong> in questo esempio, abbiamo concatenato due DataFrames panda, ma puoi utilizzare questa sintassi esatta per concatenare qualsiasi numero di DataFrames desideri.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota n.2:<\/strong> puoi trovare la documentazione completa per la funzione pandas <strong>concat()<\/strong> <a href=\"https:\/\/pandas.pydata.org\/pandas-docs\/stable\/reference\/api\/pandas.concat.html\" target=\"_blank\" rel=\"noopener\">qui<\/a> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Risorse addizionali<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">I seguenti tutorial spiegano come eseguire altre operazioni comuni nei panda:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/it\/i-panda-uniscono-piu-colonne\/\" target=\"_blank\" rel=\"noopener\">Come unire Pandas DataFrames su pi\u00f9 colonne<\/a><br \/> Come unire due DataFrames Panda su index<br \/> Come aggiungere una colonna a un DataFrame Pandas<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c8 possibile utilizzare la seguente sintassi di base per concatenare due DataFrames panda: df3 = pd. concat ([df1, df2], ignore_index= True ) L&#8217;esempio seguente mostra come utilizzare questa sintassi nella pratica. Esempio: come concatenare due DataFrames Pandas Supponiamo di avere i seguenti due DataFrames panda: import pandas as pd #define DataFrames df1 = pd. DataFrame [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Come concatenare due DataFrames Panda (con esempi) - Statorials<\/title>\n<meta name=\"description\" content=\"Questo tutorial spiega come concatenare due DataFrames panda, con diversi esempi.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Come concatenare due DataFrames Panda (con esempi) - Statorials\" \/>\n<meta property=\"og:description\" content=\"Questo tutorial spiega come concatenare due DataFrames panda, con diversi esempi.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T10:18:19+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/\",\"url\":\"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/\",\"name\":\"Come concatenare due DataFrames Panda (con esempi) - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/it\/#website\"},\"datePublished\":\"2023-07-22T10:18:19+00:00\",\"dateModified\":\"2023-07-22T10:18:19+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\"},\"description\":\"Questo tutorial spiega come concatenare due DataFrames panda, con diversi esempi.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/it\/concatenare-due-dataframe-panda\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Casa\",\"item\":\"https:\/\/statorials.org\/it\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Come concatenare due pandas dataframes (con esempi)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/it\/#website\",\"url\":\"https:\/\/statorials.org\/it\/\",\"name\":\"Statorials\",\"description\":\"La tua guida all&#039;alfabetizzazione statistica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/it\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"it-IT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/it\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/it\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Ciao, sono Benjamin, un professore di statistica in pensione diventato insegnante dedicato di Statorials. 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