{"id":3854,"date":"2023-07-15T04:00:50","date_gmt":"2023-07-15T04:00:50","guid":{"rendered":"https:\/\/statorials.org\/id\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/"},"modified":"2023-07-15T04:00:50","modified_gmt":"2023-07-15T04:00:50","slug":"kolom-pembaruan-panda-berdasarkan-kerangka-data-lain","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/","title":{"rendered":"Pandas: perbarui nilai kolom berdasarkan dataframe lain"},"content":{"rendered":"

<\/p>\n

\n

Seringkali Anda mungkin ingin memperbarui nilai kolom pandas DataFrame menggunakan nilai DataFrame lain.<\/span><\/span><\/p>\n

Untungnya, hal ini mudah dilakukan menggunakan fungsi merge()<\/strong> di pandas.<\/span><\/p>\n

Contoh berikut menunjukkan cara melakukan hal ini.<\/span><\/p>\n

Contoh: Perbarui nilai kolom di Pandas DataFrame berdasarkan DataFrame lain<\/strong><\/h2>\n

Misalkan kita memiliki pandas DataFrame berikut yang berisi informasi tentang berbagai pemain bola basket:<\/span><\/p>\n

 import<\/span> pandas as<\/span> pd\n\n#createDataFrame\n<\/span>df1 = pd. DataFrame<\/span> ({' team<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'],\n                    ' points<\/span> ': [18, 22, 19, 14, 14, 11, 20, 28],\n                    ' assists<\/span> ': [0, 0, 0, 1, 0, 0, 0, 1]})\n\n#view DataFrame\n<\/span>print<\/span> (df1)\n\n  team points assists\n0 to 18 0\n1 B 22 0\n2 C 19 0\n3 D 14 1\n4 E 14 0\n5 F 11 0\n6 G 20 0\n7:28 a.m. 1<\/strong><\/pre>\n
 Sekarang asumsikan nilai kolom pembantu<\/strong> tidak diperbarui di DataFrame ini.<\/span><\/p>\n
 Namun, mari kita asumsikan kita memiliki DataFrame kedua berikut yang memiliki nilai terbaru untuk kolom pembantu<\/strong> :<\/span><\/p>\n
 #create second DataFrame\n<\/span>df2 = pd. DataFrame<\/span> ({' team<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'],\n                    ' points<\/span> ': [18, 22, 19, 14, 14, 11, 20, 28],\n                    ' assists<\/span> ': [8, 7, 7, 4, 9, 12, 3, 5]})\n\n#view second DataFrame\n<\/span>print<\/span> (df2)\n\n  team points assists\n0 to 18 8\n1 B 22 7\n2 C 19 7\n3 D 14 4\n4 E 14 9\n5 F 11 12\n6 G 20 3\n7:28 5\n<\/strong><\/pre>\n
 Kita dapat menggunakan sintaks berikut untuk memperbarui nilai kolom pembantu<\/strong> dari DataFrame pertama menggunakan nilai kolom pembantu<\/strong> dari DataFrame kedua:<\/span><\/p>\n
 #merge two DataFrames\n<\/span>df1 = df1. merge<\/span> (df2, on=' team<\/span> ', how=' left<\/span> ')\n\n#drop original DataFrame columns\n<\/span>df1. drop<\/span> ([' points_x<\/span> ', ' assists_x<\/span> '], inplace= True<\/span> , axis= 1<\/span> )\n\n#rename columns\n<\/span>df1. rename<\/span> (columns={' points_y<\/span> ': ' points<\/span> ', ' assists_y<\/span> ': ' assists<\/span> '}, inplace= True<\/span> )\n\n#view updated DataFrame\n<\/span>print<\/span> (df1)\n\n  team points assists\n0 to 18 8\n1 B 22 7\n2 C 19 7\n3 D 14 4\n4 E 14 9\n5 F 11 12\n6 G 20 3\n7:28 5\n<\/strong><\/span><\/pre>\n
 Perhatikan bahwa nilai kolom pembantu<\/strong> dari DataFrame pertama telah diperbarui menggunakan nilai kolom pembantu<\/strong> dari DataFrame kedua.<\/span><\/p>\n
 Sumber daya tambahan<\/strong><\/span><\/h2>\n
 Tutorial berikut menjelaskan cara melakukan tugas umum lainnya di panda:<\/span><\/p>\n
Cara menghapus baris pertama di Pandas DataFrame<\/a>
Cara menghapus kolom pertama di Pandas DataFrame<\/a>
 Cara menghapus kolom duplikat di Pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Seringkali Anda mungkin ingin memperbarui nilai kolom pandas DataFrame menggunakan nilai DataFrame lain. Untungnya, hal ini mudah dilakukan menggunakan fungsi merge() di pandas. Contoh berikut menunjukkan cara melakukan hal ini. Contoh: Perbarui nilai kolom di Pandas DataFrame berdasarkan DataFrame lain Misalkan kita memiliki pandas DataFrame berikut yang berisi informasi tentang berbagai pemain bola basket: import […]<\/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":"\nPandas: perbarui nilai kolom berdasarkan DataFrame lain - Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara memperbarui kolom di DataFrame berdasarkan nilai dari DataFrame lain, dengan sebuah 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\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pandas: perbarui nilai kolom berdasarkan DataFrame lain - Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara memperbarui kolom di DataFrame berdasarkan nilai dari DataFrame lain, dengan sebuah contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-15T04:00:50+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\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/\",\"url\":\"https:\/\/statorials.org\/id\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/\",\"name\":\"Pandas: perbarui nilai kolom berdasarkan DataFrame lain - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-15T04:00:50+00:00\",\"dateModified\":\"2023-07-15T04:00:50+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara memperbarui kolom di DataFrame berdasarkan nilai dari DataFrame lain, dengan sebuah contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/kolom-pembaruan-panda-berdasarkan-kerangka-data-lain\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pandas: perbarui nilai kolom berdasarkan dataframe lain\"}]},{\"@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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