{"id":977,"date":"2023-07-28T03:11:49","date_gmt":"2023-07-28T03:11:49","guid":{"rendered":"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/"},"modified":"2023-07-28T03:11:49","modified_gmt":"2023-07-28T03:11:49","slug":"panda-tunggal-beberapa-kolom","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/","title":{"rendered":"Cara menemukan nilai unik di beberapa kolom di pandas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Seringkali Anda mungkin ingin menemukan semua nilai unik di beberapa kolom dalam pandas DataFrame. Untungnya, hal ini mudah dilakukan dengan menggunakan fungsi pandas <a href=\"https:\/\/pandas.pydata.org\/docs\/reference\/api\/pandas.unique.html\" target=\"_blank\" rel=\"noopener noreferrer\">Unique()<\/a> yang dikombinasikan dengan fungsi <a href=\"https:\/\/pandas.pydata.org\/pandas-docs\/stable\/reference\/api\/pandas.Series.ravel.html\" target=\"_blank\" rel=\"noopener noreferrer\">ravel()<\/a> :<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>unik()<\/strong> : mengembalikan nilai unik dalam urutan tampilan.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>ravel():<\/strong> mengembalikan serangkaian data yang diratakan.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Misalnya, kita memiliki DataFrame panda berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> pandas <span style=\"color: #107d3f;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#createDataFrame<\/span>\ndf = pd.DataFrame({'col1': ['a', 'b', 'c', 'd', 'e'],\n                   'col2': ['a', 'c', 'e', 'f', 'g'],\n                   'col3': [11, 8, 10, 6, 6]})\n\n<span style=\"color: #008080;\">#view DataFrame<\/span> \nprint(df)\n\n  col1 col2 col3\n0 aa 11\n1 bc 8\n2 this 10\n3 df 6\n4 eg 6\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Mengembalikan array nilai unik<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara mencari nilai unik di <strong>col1<\/strong> dan <strong>col2<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>p.d. <span style=\"color: #3366ff;\">unique<\/span> (df[[' <span style=\"color: #008000;\">col1<\/span> ', ' <span style=\"color: #008000;\">col2<\/span> ']]. <span style=\"color: #3366ff;\">values<\/span> . <span style=\"color: #3366ff;\">ravel<\/span> ())\n\narray(['a', 'b', 'c', 'e', 'd', 'f', 'g'], dtype=object)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasilnya terlihat ada <strong>7<\/strong> nilai unik pada dua kolom tersebut: <strong>a, b, c, d, e, f, g<\/strong> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Kembalikan DataFrame dengan nilai unik<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Jika Anda ingin mengembalikan nilai-nilai ini sebagai DataFrame dan bukan array, Anda dapat menggunakan kode berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>unique = pd. <span style=\"color: #3366ff;\">unique<\/span> (df[[' <span style=\"color: #008000;\">col1<\/span> ', ' <span style=\"color: #008000;\">col2<\/span> ']]. <span style=\"color: #3366ff;\">values<\/span> . <span style=\"color: #3366ff;\">ravel<\/span> ())\n\np.d. <span style=\"color: #3366ff;\">DataFrame<\/span> (unique)\n\n\t0\n0 a\n1b\n2 tbsp\n3rd\n4 d\n5f\n6g\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Mengembalikan jumlah nilai unik<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Jika Anda hanya ingin mengetahui jumlah nilai unik di beberapa kolom, Anda dapat menggunakan kode berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>unique = pd. <span style=\"color: #3366ff;\">unique<\/span> (df[[' <span style=\"color: #008000;\">col1<\/span> ', ' <span style=\"color: #008000;\">col2<\/span> ']]. <span style=\"color: #3366ff;\">values<\/span> . <span style=\"color: #3366ff;\">ravel<\/span> ())\n\n<span style=\"color: #3366ff;\">len<\/span> (unique)\n7<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ini memberitahu kita bahwa ada <strong>7<\/strong> nilai unik di dua kolom ini.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/id\/panda-menggabungkan-beberapa-kolom\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara menggabungkan Pandas DataFrames di beberapa kolom<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/panda-memfilter-beberapa-kondisi\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cara memfilter Pandas DataFrame pada berbagai kondisi<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seringkali Anda mungkin ingin menemukan semua nilai unik di beberapa kolom dalam pandas DataFrame. Untungnya, hal ini mudah dilakukan dengan menggunakan fungsi pandas Unique() yang dikombinasikan dengan fungsi ravel() : unik() : mengembalikan nilai unik dalam urutan tampilan. ravel(): mengembalikan serangkaian data yang diratakan. Misalnya, kita memiliki DataFrame panda berikut: import pandas as pd #createDataFrame [&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>Cara menemukan nilai unik di beberapa kolom di Pandas \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"Penjelasan sederhana tentang cara menemukan nilai unik di beberapa kolom di pandas DataFrame, termasuk beberapa contoh.\" \/>\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\/id\/panda-tunggal-beberapa-kolom\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menemukan nilai unik di beberapa kolom di Pandas \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"Penjelasan sederhana tentang cara menemukan nilai unik di beberapa kolom di pandas DataFrame, termasuk beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T03:11:49+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/\",\"url\":\"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/\",\"name\":\"Cara menemukan nilai unik di beberapa kolom di Pandas \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-28T03:11:49+00:00\",\"dateModified\":\"2023-07-28T03:11:49+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Penjelasan sederhana tentang cara menemukan nilai unik di beberapa kolom di pandas DataFrame, termasuk beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/panda-tunggal-beberapa-kolom\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menemukan nilai unik di beberapa kolom di pandas\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/id\/#website\",\"url\":\"https:\/\/statorials.org\/id\/\",\"name\":\"Statorials\",\"description\":\"Panduan anda untuk kompetensi statistik!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/id\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"id\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"id\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Halo, saya Benjamin, pensiunan profesor statistika yang menjadi guru Statorial yang berdedikasi. 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