{"id":3076,"date":"2023-07-19T08:19:16","date_gmt":"2023-07-19T08:19:16","guid":{"rendered":"https:\/\/statorials.org\/it\/r-unisci-file-csv\/"},"modified":"2023-07-19T08:19:16","modified_gmt":"2023-07-19T08:19:16","slug":"r-unisci-file-csv","status":"publish","type":"post","link":"https:\/\/statorials.org\/it\/r-unisci-file-csv\/","title":{"rendered":"Come unire pi\u00f9 file csv in r (esempio passo passo)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><span style=\"color: #000000;\">\u00c8 possibile utilizzare la seguente sintassi di base per importare e unire pi\u00f9 file CSV situati nella stessa cartella in R:<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df &lt;- list. <span style=\"color: #3366ff;\">files<\/span> (path=' <span style=\"color: #ff0000;\">C:\/my\/path\/to\/files<\/span> ') %&gt;% \n  lapply(read_csv) %&gt;% \n  bind_rows\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Il seguente esempio passo passo mostra come utilizzare questa sintassi nella pratica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Passaggio 1: crea ed esporta pi\u00f9 frame di dati<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Innanzitutto, utilizzeremo il seguente codice per creare ed esportare tre frame di dati in file CSV:<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create three data frames\n<span style=\"color: #000000;\">df1 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (points=c(4, 5, 5, 6, 8, 9),\n                  assists=c(3, 2, 4, 4, 6, 3))\n\ndf2 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (points=c(2, 10, 14, 15),\n                  assists=c(3, 2, 9, 3))\n\ndf3 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (dots=c(6, 8, 9),\n                  assists=c(10, 6, 4))<\/span>\n\n#export all three data frames to CSV files\n<span style=\"color: #000000;\">write.write. <span style=\"color: #3366ff;\">csv<\/span> (df1, ' <span style=\"color: #ff0000;\">C:\/Users\/bob\/Documents\/my_data_files\/df1.csv<\/span> ', <span style=\"color: #3366ff;\">row.names<\/span> = <span style=\"color: #008000;\">FALSE<\/span> )\nwrite.write. <span style=\"color: #3366ff;\">csv<\/span> (df2, ' <span style=\"color: #ff0000;\">C:\/Users\/bob\/Documents\/my_data_files\/df2.csv<\/span> ', <span style=\"color: #3366ff;\">row.names<\/span> = <span style=\"color: #008000;\">FALSE<\/span> )\nwrite.write. <span style=\"color: #3366ff;\">csv<\/span> (df3, ' <span style=\"color: #ff0000;\">C:\/Users\/bob\/Documents\/my_data_files\/df3.csv<\/span> ', <span style=\"color: #3366ff;\">row.names<\/span> = <span style=\"color: #008000;\">FALSE<\/span> )\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Posso accedere a questa cartella e vedere che tutti e tre i file CSV sono stati esportati con successo:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-26328 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/fusioncsv1.jpg\" alt=\"\" width=\"574\" height=\"459\" srcset=\"\" sizes=\"\"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Passaggio 2: importa e unisci pi\u00f9 file CSV<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Successivamente, utilizzeremo il seguente codice per importare e unire i tre file CSV in un singolo frame di dati in R:<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">library<\/span> (dplyr)\n<span style=\"color: #008000;\">library<\/span> (readr)\n\n<span style=\"color: #008080;\">#import and merge all three CSV files into one data frame\n<\/span>df &lt;- list. <span style=\"color: #3366ff;\">files<\/span> (path=' <span style=\"color: #ff0000;\">C:\/Users\/bob\/Documents\/my_data_files<\/span> ') %&gt;% \n  lapply(read_csv) %&gt;% \n  bind_rows \n\n<span style=\"color: #008080;\">#view resulting data frame\n<\/span>df\n\n# A tibble: 13 x 2\n   assist points\n       \n 1 4 3\n 2 5 2\n 3 5 4\n 4 6 4\n 5 8 6\n 6 9 3\n 7 2 3\n 8 10 2\n 9 14 9\n10 15 3\n11 6 10\n12 8 6\n13 9 4<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Tieni presente che i tre file CSV sono stati uniti con successo in un unico frame di dati.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Possiamo vedere che il frame di dati risultante ha 13 righe e 2 colonne.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : se i frame di dati non hanno nomi di colonna corrispondenti, R unir\u00e0 sempre tutti i frame di dati e semplicemente riempir\u00e0 i valori mancanti con valori <strong>NA<\/strong> .<\/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 utilizzare altri tipi di file in R:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/it\/importare-excel-in-r\/\" target=\"_blank\" rel=\"noopener\">Come importare file Excel in R<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/importa-tsv-in-r\/\" target=\"_blank\" rel=\"noopener\">Come importare file TSV in R<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/leggere-il-file-zip-in-r\/\" target=\"_blank\" rel=\"noopener\">Come importare file Zip in R<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/import-sas-in-r\/\" target=\"_blank\" rel=\"noopener\">Come importare file SAS in R<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/importare-il-file-di-dati-in-r\/\" target=\"_blank\" rel=\"noopener\">Come importare file .dta in R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c8 possibile utilizzare la seguente sintassi di base per importare e unire pi\u00f9 file CSV situati nella stessa cartella in R: df &lt;- list. files (path=&#8217; C:\/my\/path\/to\/files &#8216;) %&gt;% lapply(read_csv) %&gt;% bind_rows Il seguente esempio passo passo mostra come utilizzare questa sintassi nella pratica. Passaggio 1: crea ed esporta pi\u00f9 frame di dati Innanzitutto, utilizzeremo [&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 unire pi\u00f9 file CSV in R (esempio passo passo) - Statorials<\/title>\n<meta name=\"description\" content=\"Questo tutorial spiega come unire pi\u00f9 file CSV in R, incluso un esempio passo passo.\" \/>\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\/r-unisci-file-csv\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Come unire pi\u00f9 file CSV in R (esempio passo passo) - Statorials\" \/>\n<meta property=\"og:description\" content=\"Questo tutorial spiega come unire pi\u00f9 file CSV in R, incluso un esempio passo passo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/it\/r-unisci-file-csv\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-19T08:19:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/fusioncsv1.jpg\" \/>\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=\"2 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/it\/r-unisci-file-csv\/\",\"url\":\"https:\/\/statorials.org\/it\/r-unisci-file-csv\/\",\"name\":\"Come unire pi\u00f9 file CSV in R (esempio passo passo) - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/it\/#website\"},\"datePublished\":\"2023-07-19T08:19:16+00:00\",\"dateModified\":\"2023-07-19T08:19:16+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\"},\"description\":\"Questo tutorial spiega come unire pi\u00f9 file CSV in R, incluso un esempio passo passo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/it\/r-unisci-file-csv\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/it\/r-unisci-file-csv\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/it\/r-unisci-file-csv\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Casa\",\"item\":\"https:\/\/statorials.org\/it\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Come unire pi\u00f9 file csv in r (esempio passo passo)\"}]},{\"@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. Con una vasta esperienza e competenza nel campo della statistica, sono ansioso di condividere le mie conoscenze per potenziare gli studenti attraverso Statorials. Scopri di pi\u00f9\",\"sameAs\":[\"https:\/\/statorials.org\/it\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Come unire pi\u00f9 file CSV in R (esempio passo passo) - Statorials","description":"Questo tutorial spiega come unire pi\u00f9 file CSV in R, incluso un esempio passo passo.","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:\/\/statorials.org\/it\/r-unisci-file-csv\/","og_locale":"it_IT","og_type":"article","og_title":"Come unire pi\u00f9 file CSV in R (esempio passo passo) - Statorials","og_description":"Questo tutorial spiega come unire pi\u00f9 file CSV in R, incluso un esempio passo passo.","og_url":"https:\/\/statorials.org\/it\/r-unisci-file-csv\/","og_site_name":"Statorials","article_published_time":"2023-07-19T08:19:16+00:00","og_image":[{"url":"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/fusioncsv1.jpg"}],"author":"Benjamin anderson","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Benjamin anderson","Est. reading time":"2 minuti"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/it\/r-unisci-file-csv\/","url":"https:\/\/statorials.org\/it\/r-unisci-file-csv\/","name":"Come unire pi\u00f9 file CSV in R (esempio passo passo) - Statorials","isPartOf":{"@id":"https:\/\/statorials.org\/it\/#website"},"datePublished":"2023-07-19T08:19:16+00:00","dateModified":"2023-07-19T08:19:16+00:00","author":{"@id":"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae"},"description":"Questo tutorial spiega come unire pi\u00f9 file CSV in R, incluso un esempio passo passo.","breadcrumb":{"@id":"https:\/\/statorials.org\/it\/r-unisci-file-csv\/#breadcrumb"},"inLanguage":"it-IT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/it\/r-unisci-file-csv\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/it\/r-unisci-file-csv\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Casa","item":"https:\/\/statorials.org\/it\/"},{"@type":"ListItem","position":2,"name":"Come unire pi\u00f9 file csv in r (esempio passo passo)"}]},{"@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. Con una vasta esperienza e competenza nel campo della statistica, sono ansioso di condividere le mie conoscenze per potenziare gli studenti attraverso Statorials. Scopri di pi\u00f9","sameAs":["https:\/\/statorials.org\/it"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/posts\/3076"}],"collection":[{"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/comments?post=3076"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/posts\/3076\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/media?parent=3076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/categories?post=3076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/it\/wp-json\/wp\/v2\/tags?post=3076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}