{"id":2405,"date":"2023-07-22T10:10:15","date_gmt":"2023-07-22T10:10:15","guid":{"rendered":"https:\/\/statorials.org\/pl\/pandy-wybierz-kolumne-wedlug-indeksu\/"},"modified":"2023-07-22T10:10:15","modified_gmt":"2023-07-22T10:10:15","slug":"pandy-wybierz-kolumne-wedlug-indeksu","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/pandy-wybierz-kolumne-wedlug-indeksu\/","title":{"rendered":"Jak wybra\u0107 kolumny wed\u0142ug indeksu w ramce danych pandas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Cz\u0119sto mo\u017cesz chcie\u0107 wybra\u0107 kolumny w ramce danych pand na podstawie ich warto\u015bci indeksu.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Je\u015bli chcesz wybra\u0107 kolumny w oparciu o indeksowanie liczb ca\u0142kowitych, mo\u017cesz u\u017cy\u0107 funkcji <strong>.iloc<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Je\u015bli chcesz wybra\u0107 kolumny na podstawie indeksowania etykiet, mo\u017cesz u\u017cy\u0107 funkcji <strong>.loc<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">W tym samouczku przedstawiono przyk\u0142ad praktycznego wykorzystania ka\u017cdej z tych funkcji.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Wybierz kolumny w oparciu o indeksowanie liczb ca\u0142kowitych<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak utworzy\u0107 pand\u0119 DataFrame i u\u017cy\u0107 <strong>.iloc<\/strong> , aby wybra\u0107 kolumn\u0119 z ca\u0142kowit\u0105 warto\u015bci\u0105 indeksu r\u00f3wn\u0105 <strong>3<\/strong> :<\/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<span style=\"color: #008080;\">\n\n#createDataFrame\n<span style=\"color: #000000;\">df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'A', 'B', 'B', 'B'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [11, 7, 8, 10, 13, 13],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9, 12, 9],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5]})\n<span style=\"color: #000000;\"><span style=\"color: #008080;\">\n#view DataFrame\n<\/span>df\n\n\tteam points assists rebounds\n0 A 11 5 11\n1 To 7 7 8\n2 to 8 7 10\n3 B 10 9 6\n4 B 13 12 6\n5 B 13 9 5\n\n<\/span><span style=\"color: #008080;\">#select column with index position 3\n<\/span><span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">iloc<\/span> [:, 3]\n\n0 11\n1 8\n2 10\n3 6\n4 6\n5 5\nName: rebounds, dtype: int64<\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Mo\u017cemy u\u017cy\u0107 podobnej sk\u0142adni, aby wybra\u0107 wiele kolumn:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select columns with index positions 1 and 3\n<span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">iloc<\/span> [:, [1, 3]]\n\n\n        rebound points\n0 11 11\n1 7 8\n2 8 10\n3 10 6\n4 13 6\n5 13 5\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Lub mo\u017cemy wybra\u0107 wszystkie kolumny w zakresie:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select columns with index positions in range 0 through 3\n<span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">iloc<\/span> [:, 0:3]\n\n        team points assists\n0 to 11 5\n1 To 7 7\n2 to 8 7\n3 B 10 9\n4 B 13 12\n5 B 13 9<\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Wybierz kolumny na podstawie indeksowania etykiet<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak utworzy\u0107 ramk\u0119 danych pandy i u\u017cy\u0107 <strong>.loc<\/strong> , aby wybra\u0107 kolumn\u0119 z etykiet\u0105 indeksu <strong>\u201eodbicia\u201d<\/strong> :<\/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<span style=\"color: #008080;\">\n\n#createDataFrame\n<span style=\"color: #000000;\">df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'A', 'B', 'B', 'B'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [11, 7, 8, 10, 13, 13],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9, 12, 9],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tteam points assists rebounds\n0 A 11 5 11\n1 To 7 7 8\n2 to 8 7 10\n3 B 10 9 6\n4 B 13 12 6\n5 B 13 9 5\n\n<span style=\"color: #008080;\">#select column with index label 'rebounds'\n<\/span>df. <span style=\"color: #3366ff;\">loc<\/span> [:, ' <span style=\"color: #ff0000;\">rebounds<\/span> ']\n\n0 11\n1 8\n2 10\n3 6\n4 6\n5 5\nName: rebounds, dtype: int64<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Mo\u017cemy u\u017cy\u0107 podobnej sk\u0142adni, aby wybra\u0107 wiele kolumn z r\u00f3\u017cnymi etykietami indeksu:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select the columns with index labels 'points' and 'rebounds'\n<span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">loc<\/span> [:,[' <span style=\"color: #ff0000;\">points<\/span> ',' <span style=\"color: #ff0000;\">rebounds<\/span> ']]\n\n\trebound points\n0 11 11\n1 7 8\n2 8 10\n3 10 6\n4 13 6\n5 13 5<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Lub mo\u017cemy wybra\u0107 wszystkie kolumny w zakresie:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#select columns with index labels between 'team' and 'assists'\n<span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">loc<\/span> [:, ' <span style=\"color: #ff0000;\">team<\/span> ':' <span style=\"color: #ff0000;\">assists<\/span> ']\n\n\tteam points assists\n0 to 11 5\n1 To 7 7\n2 to 8 7\n3 B 10 9\n4 B 13 12\n5 B 13 9<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Powi\u0105zane:<\/strong><\/span> <a href=\"https:\/\/statorials.org\/pl\/pandy-loc-vs-iloc\/\" target=\"_blank\" rel=\"noopener\">Pandy loc vs iloc: jaka jest r\u00f3\u017cnica?<\/a><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe operacje na pandach:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/indeks-grupowy-pand\/\" target=\"_blank\" rel=\"noopener\">Jak grupowa\u0107 wed\u0142ug indeksu w ramce danych Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/pandy-wybieraja-wiersze-wed\u0142ug-indeksu\/\" target=\"_blank\" rel=\"noopener\">Jak wybiera\u0107 wiersze wed\u0142ug indeksu w ramce danych Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/pandy-otrzymuja-numer-linii\/\" target=\"_blank\" rel=\"noopener noreferrer\">Jak uzyska\u0107 numery wierszy w ramce danych Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/upusc-pandy-indeksowe\/\" target=\"_blank\" rel=\"noopener noreferrer\">Jak usun\u0105\u0107 kolumn\u0119 indeksu w ramce danych Pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cz\u0119sto mo\u017cesz chcie\u0107 wybra\u0107 kolumny w ramce danych pand na podstawie ich warto\u015bci indeksu. Je\u015bli chcesz wybra\u0107 kolumny w oparciu o indeksowanie liczb ca\u0142kowitych, mo\u017cesz u\u017cy\u0107 funkcji .iloc . Je\u015bli chcesz wybra\u0107 kolumny na podstawie indeksowania etykiet, mo\u017cesz u\u017cy\u0107 funkcji .loc . W tym samouczku przedstawiono przyk\u0142ad praktycznego wykorzystania ka\u017cdej z tych funkcji. Przyk\u0142ad 1: [&hellip;]<\/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-2405","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak wybra\u0107 kolumny wed\u0142ug indeksu w ramce danych Pandas - Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak wybiera\u0107 kolumny wed\u0142ug indeksu 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-wybierz-kolumne-wedlug-indeksu\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak wybra\u0107 kolumny wed\u0142ug indeksu w ramce danych Pandas - Statorials\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak wybiera\u0107 kolumny wed\u0142ug indeksu w ramce DataFrame pandy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/pandy-wybierz-kolumne-wedlug-indeksu\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T10:10:15+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-wybierz-kolumne-wedlug-indeksu\/\",\"url\":\"https:\/\/statorials.org\/pl\/pandy-wybierz-kolumne-wedlug-indeksu\/\",\"name\":\"Jak wybra\u0107 kolumny wed\u0142ug indeksu w ramce danych Pandas - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-22T10:10:15+00:00\",\"dateModified\":\"2023-07-22T10:10:15+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak wybiera\u0107 kolumny wed\u0142ug indeksu w ramce DataFrame pandy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/pandy-wybierz-kolumne-wedlug-indeksu\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/pandy-wybierz-kolumne-wedlug-indeksu\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/pandy-wybierz-kolumne-wedlug-indeksu\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak wybra\u0107 kolumny wed\u0142ug indeksu w ramce danych pandas\"}]},{\"@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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