{"id":2201,"date":"2023-07-23T06:52:32","date_gmt":"2023-07-23T06:52:32","guid":{"rendered":"https:\/\/statorials.org\/pl\/pandy-zmieniaja-nazwy-kolumn\/"},"modified":"2023-07-23T06:52:32","modified_gmt":"2023-07-23T06:52:32","slug":"pandy-zmieniaja-nazwy-kolumn","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/pandy-zmieniaja-nazwy-kolumn\/","title":{"rendered":"Jak zmieni\u0107 nazwy kolumn w pandach (z przyk\u0142adami)"},"content":{"rendered":"

<\/p>\n

\n

Mo\u017cesz u\u017cy\u0107 jednej z nast\u0119puj\u0105cych trzech metod, aby zmieni\u0107 nazwy kolumn ramki DataFrame pandy:<\/span><\/p>\n

Metoda 1: Zmie\u0144 nazw\u0119 okre\u015blonych kolumn<\/strong><\/span><\/p>\n

 df. rename<\/span> (columns = {' old_col1<\/span> ':' new_col1<\/span> ', ' old_col2<\/span> ':' new_col2<\/span> '}, inplace = True<\/span> )\n<\/strong><\/pre>\n
 Metoda 2: Zmie\u0144 nazw\u0119 wszystkich kolumn<\/strong><\/span><\/p>\n
 df. columns<\/span> = [' new_col1<\/span> ', ' new_col2<\/span> ', ' new_col3<\/span> ', ' new_col4<\/span> ']<\/strong><\/pre>\n
 Metoda 3: Zamie\u0144 okre\u015blone znaki w kolumnach<\/strong><\/span><\/p>\n
 df. columns<\/span> = df. columns<\/span> . str<\/span> . replace<\/span> (' old_char<\/span> ', ' new_char<\/span> ')<\/strong><\/pre>\n
 Poni\u017csze przyk\u0142ady pokazuj\u0105, jak zastosowa\u0107 ka\u017cd\u0105 z tych metod w praktyce.<\/span><\/p>\n
 Powi\u0105zane:<\/strong> Jak uzyska\u0107 nazwy kolumn w Pandach (3 metody)<\/a><\/span><\/p>\n
 Metoda 1: Zmie\u0144 nazw\u0119 okre\u015blonych kolumn<\/strong><\/span><\/h2>\n
 Poni\u017cszy kod pokazuje, jak zmieni\u0107 nazw\u0119 okre\u015blonych kolumn w ramce DataFrame pandy:<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#define DataFrame\ndf = pd. DataFrame<\/span> ({' team<\/span> ':['A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'],\n                   ' points<\/span> ': [25, 12, 15, 14, 19, 23, 25, 29],\n                   ' assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n\n#list column names\n<\/span>list<\/span> (df)\n\n['team', 'points', 'assists', 'rebounds']\n\n#rename specific column names\n<\/span>df. rename<\/span> (columns = {' team<\/span> ': ' team_name<\/span> ', ' points<\/span> ': ' points_scored<\/span> '}, inplace = True<\/span> )\n\n#view updated list of column names\n<\/span>list<\/span> (df)\n\n['team_name', 'points_scored', 'assists', 'rebounds']\n<\/span><\/span><\/span><\/span><\/strong><\/pre>\n
 Nale\u017cy pami\u0119ta\u0107, \u017ce nazwy kolumn \u201ezesp\u00f3\u0142\u201d i \u201epunkty\u201d zosta\u0142y zmienione, podczas gdy nazwy pozosta\u0142ych kolumn pozosta\u0142y takie same.<\/span><\/p>\n
 Metoda 2: Zmie\u0144 nazw\u0119 wszystkich kolumn<\/strong><\/span><\/h2>\n
 Poni\u017cszy kod pokazuje, jak zmieni\u0107 nazw\u0119 wszystkich kolumn w ramce DataFrame pandy:<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#define DataFrame\ndf = pd. DataFrame<\/span> ({' team<\/span> ':['A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'],\n                   ' points<\/span> ': [25, 12, 15, 14, 19, 23, 25, 29],\n                   ' assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n\n#list column names\n<\/span>list<\/span> (df)\n\n['team', 'points', 'assists', 'rebounds']\n\n#rename all column names\n<\/span>df. columns<\/span> = [' _team<\/span> ', ' _points<\/span> ', ' _assists<\/span> ', ' _rebounds<\/span> ']\n<\/span>\n#view updated list of column names\n<\/span>list<\/span> (df)\n\n['_team', '_points', '_assists', '_rebounds']\n<\/span><\/span><\/span><\/span><\/strong><\/pre>\n
 Nale\u017cy pami\u0119ta\u0107, \u017ce u\u017cycie tej metody jest szybsze, je\u015bli chcesz zmieni\u0107 nazw\u0119 wi\u0119kszo\u015bci lub wszystkich nazw kolumn w ramce DataFrame.<\/span><\/p>\n
 Metoda 3: Zamie\u0144 okre\u015blone znaki w kolumnach<\/strong><\/span><\/h2>\n
 Poni\u017cszy kod pokazuje, jak zast\u0105pi\u0107 okre\u015blony znak w nazwie ka\u017cdej kolumny:<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#define DataFrame\ndf = pd. DataFrame<\/span> ({' $team<\/span> ':['A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'],\n                   ' $points<\/span> ': [25, 12, 15, 14, 19, 23, 25, 29],\n                   ' $assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' $rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n\n#list column names\n<\/span>list<\/span> (df)\n\n['team', 'points', 'assists', 'rebounds']\n\n#rename $ with blank in every column name\n<\/span>df. columns<\/span> = df. columns<\/span> . str<\/span> . replace<\/span> (' $<\/span> ', '')\n\n#view updated list of column names\n<\/span>list(df)\n\n['team', 'points', 'assists', 'rebounds']\n<\/span><\/span><\/strong><\/pre>\n
 Zauwa\u017c, \u017ce ta metoda pozwoli\u0142a nam szybko usun\u0105\u0107 znak \u201e$\u201d z nazwy ka\u017cdej kolumny.<\/span><\/p>\n
 Dodatkowe zasoby<\/strong><\/span><\/h2>\n
 Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe operacje na pandach:<\/span><\/p>\n
 Jak wy\u015bwietli\u0107 list\u0119 wszystkich nazw kolumn w Pandach<\/a>
 Jak sortowa\u0107 kolumny wed\u0142ug nazwy w Pandach<\/a>
 Jak usun\u0105\u0107 zduplikowane kolumny w Pandach<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Mo\u017cesz u\u017cy\u0107 jednej z nast\u0119puj\u0105cych trzech metod, aby zmieni\u0107 nazwy kolumn ramki DataFrame pandy: Metoda 1: Zmie\u0144 nazw\u0119 okre\u015blonych kolumn df. rename (columns = {’ old_col1 ’:’ new_col1 ’, ’ old_col2 ’:’ new_col2 ’}, inplace = True ) Metoda 2: Zmie\u0144 nazw\u0119 wszystkich kolumn df. columns = [’ new_col1 ’, ’ new_col2 ’, ’ new_col3 […]<\/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-2201","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak zmieni\u0107 nazwy kolumn w Pandach (z przyk\u0142adami) \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak zmieni\u0107 nazwy kolumn w ramce DataFrame pandy, podaj\u0105c 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-zmieniaja-nazwy-kolumn\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak zmieni\u0107 nazwy kolumn w Pandach (z przyk\u0142adami) \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak zmieni\u0107 nazwy kolumn w ramce DataFrame pandy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/pandy-zmieniaja-nazwy-kolumn\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-23T06:52:32+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-zmieniaja-nazwy-kolumn\/\",\"url\":\"https:\/\/statorials.org\/pl\/pandy-zmieniaja-nazwy-kolumn\/\",\"name\":\"Jak zmieni\u0107 nazwy kolumn w Pandach (z przyk\u0142adami) \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-23T06:52:32+00:00\",\"dateModified\":\"2023-07-23T06:52:32+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak zmieni\u0107 nazwy kolumn w ramce DataFrame pandy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/pandy-zmieniaja-nazwy-kolumn\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/pandy-zmieniaja-nazwy-kolumn\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/pandy-zmieniaja-nazwy-kolumn\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak zmieni\u0107 nazwy kolumn w pandach (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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