{"id":979,"date":"2023-07-28T02:45:23","date_gmt":"2023-07-28T02:45:23","guid":{"rendered":"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/"},"modified":"2023-07-28T02:45:23","modified_gmt":"2023-07-28T02:45:23","slug":"pandy-sortuja-wedlug-daty","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/","title":{"rendered":"Jak posortowa\u0107 ramk\u0119 danych pandy wed\u0142ug daty (z przyk\u0142adami)"},"content":{"rendered":"

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Cz\u0119sto mo\u017cesz chcie\u0107 posortowa\u0107 ramk\u0119 danych pand na podstawie kolumny zawieraj\u0105cej daty. Na szcz\u0119\u015bcie mo\u017cna to \u0142atwo zrobi\u0107 za pomoc\u0105 funkcji sort_values()<\/strong><\/a> .<\/span><\/p>\n

W tym samouczku przedstawiono kilka przyk\u0142ad\u00f3w praktycznego wykorzystania tej funkcji.<\/span><\/p>\n

Przyk\u0142ad 1: Sortuj wed\u0142ug kolumny daty<\/strong><\/span><\/h3>\n

Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 DataFrame pand:<\/span><\/p>\n

 import<\/span> pandas as<\/span> pd\n\n#createDataFrame<\/span>\ndf = pd.DataFrame({'sales': [4, 11, 13, 9],\n                   'customers': [2, 6, 9, 7],\n                   'date': ['2020-01-25', '2020-01-18', '2020-01-22', '2020-01-21']})\n\n#view DataFrame\n<\/span>print<\/span> (df)\n\n   sales customers date\n0 4 2 2020-01-25\n1 11 6 2020-01-18\n2 13 9 2020-01-22\n3 9 7 2020-01-21\n<\/strong><\/pre>\n
 Najpierw musimy u\u017cy\u0107 funkcji to_datetime()<\/strong> , aby przekonwertowa\u0107 kolumn\u0119 \u201edata\u201d na obiekt typu datetime:<\/span><\/p>\n
 df[' date<\/span> '] = pd. to_datetime<\/span> (df[' date<\/span> '])\n<\/strong><\/pre>\n
 Nast\u0119pnie mo\u017cemy posortowa\u0107 DataFrame na podstawie kolumny \u201edata\u201d za pomoc\u0105 funkcji sort_values()<\/strong> :<\/span><\/p>\n
 df. sort_values<\/span> (by=' date<\/span> ')\n\n        sales customers date\n1 11 6 2020-01-18\n3 9 7 2020-01-21\n2 13 9 2020-01-22\n0 4 2 2020-01-25\n<\/strong><\/pre>\n
 Domy\u015blnie ta funkcja sortuje daty w kolejno\u015bci rosn\u0105cej. Mo\u017cesz jednak okre\u015bli\u0107 rosn\u0105co=Fa\u0142sz,<\/strong> aby posortowa\u0107 w kolejno\u015bci malej\u0105cej:<\/span><\/p>\n
 df. sort_values<\/span> (by=' date<\/span> ', ascending= False<\/span> )\n\n\tsales customers date\n0 4 2 2020-01-25\n2 13 9 2020-01-22\n3 9 7 2020-01-21\n1 11 6 2020-01-18<\/strong><\/pre>\n
 Przyk\u0142ad 2: sortowanie wed\u0142ug wielu kolumn dat<\/strong><\/span><\/h3>\n
 Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 DataFrame pand:<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#createDataFrame<\/span>\ndf = pd.DataFrame({'person': ['A', 'B', 'C', 'D'],\n                   'order_date': ['2020-01-15', '2020-01-15', '2020-01-20', '2020-01-20'],\n                   'receive_date': ['2020-01-25', '2020-01-18', '2020-01-22', '2020-01-21']})\n\n#view DataFrame\n<\/span>print<\/span> (df)\n\n  person order_date receive_date\n0 A 2020-01-15 2020-01-25\n1 B 2020-01-15 2020-01-18\n2 C 2020-01-20 2020-01-22\n3 D 2020-01-20 2020-01-21<\/strong><\/pre>\n
 Mo\u017cemy u\u017cy\u0107 funkcji sort_values<\/strong> , aby posortowa\u0107 DataFrame po wielu kolumnach, po prostu podaj\u0105c do funkcji wiele nazw kolumn:<\/span><\/p>\n
 #convert both date columns to datetime objects<\/span>\ndf[['order_date','receive_date']] = df[['order_date','receive_date']]. apply<\/span> (pd. to_datetime<\/span> )\n\n#sort DateFrame by order_date, then by receive_date\n<\/span>df. sort_values<\/span> (by=['order_date', 'receive_date'])\n\n        person order_date receive_date\n1 B 2020-01-15 2020-01-18\n0 A 2020-01-15 2020-01-25\n3 D 2020-01-20 2020-01-21\n2 C 2020-01-20 2020-01-22<\/strong><\/pre>\n
 DataFrame jest teraz posortowana w kolejno\u015bci rosn\u0105cej wed\u0142ug daty_zam\u00f3wienia, a nast\u0119pnie w kolejno\u015bci rosn\u0105cej wed\u0142ug daty_potwierdzenia.<\/span><\/p>\n
 Dodatkowe zasoby<\/strong><\/span><\/h3>\n
 Jak filtrowa\u0107 wiersze Pandas DataFrame wed\u0142ug daty<\/a>
 Jak przekonwertowa\u0107 DateTime na dat\u0119 w Pandach<\/a>
 Jak przekonwertowa\u0107 kolumny na DateTime w Pandach<\/a>
 Jak sortowa\u0107 wed\u0142ug indeksu i kolumny w Pandach<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Cz\u0119sto mo\u017cesz chcie\u0107 posortowa\u0107 ramk\u0119 danych pand na podstawie kolumny zawieraj\u0105cej daty. Na szcz\u0119\u015bcie mo\u017cna to \u0142atwo zrobi\u0107 za pomoc\u0105 funkcji sort_values() . W tym samouczku przedstawiono kilka przyk\u0142ad\u00f3w praktycznego wykorzystania tej funkcji. Przyk\u0142ad 1: Sortuj wed\u0142ug kolumny daty Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 DataFrame pand: import pandas as pd #createDataFrame df = pd.DataFrame({’sales’: [4, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-979","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak posortowa\u0107 ramk\u0119 danych Pandy wed\u0142ug daty (z przyk\u0142adami)<\/title>\n<meta name=\"description\" content=\"Proste wyja\u015bnienie, jak sortowa\u0107 ramk\u0119 DataFrame pand wed\u0142ug kolumny daty, w tym kilka przyk\u0142ad\u00f3w.\" \/>\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\/pl\/pandy-sortuja-wedlug-daty\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak posortowa\u0107 ramk\u0119 danych Pandy wed\u0142ug daty (z przyk\u0142adami)\" \/>\n<meta property=\"og:description\" content=\"Proste wyja\u015bnienie, jak sortowa\u0107 ramk\u0119 DataFrame pand wed\u0142ug kolumny daty, w tym kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T02:45:23+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/\",\"url\":\"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/\",\"name\":\"Jak posortowa\u0107 ramk\u0119 danych Pandy wed\u0142ug daty (z przyk\u0142adami)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-28T02:45:23+00:00\",\"dateModified\":\"2023-07-28T02:45:23+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"Proste wyja\u015bnienie, jak sortowa\u0107 ramk\u0119 DataFrame pand wed\u0142ug kolumny daty, w tym kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/pandy-sortuja-wedlug-daty\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak posortowa\u0107 ramk\u0119 danych pandy wed\u0142ug daty (z przyk\u0142adami)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pl\/#website\",\"url\":\"https:\/\/statorials.org\/pl\/\",\"name\":\"Statorials\",\"description\":\"Tw\u00f3j przewodnik po kompetencjach statystycznych!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\",\"name\":\"Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin Anderson\"},\"description\":\"Cze\u015b\u0107, jestem Benjamin i jestem emerytowanym profesorem statystyki, kt\u00f3ry zosta\u0142 oddanym nauczycielem Statorials. 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