{"id":3434,"date":"2023-07-17T12:20:03","date_gmt":"2023-07-17T12:20:03","guid":{"rendered":"https:\/\/statorials.org\/pl\/pandas-wybiera-kolumny-wedlug-nazwy\/"},"modified":"2023-07-17T12:20:03","modified_gmt":"2023-07-17T12:20:03","slug":"pandas-wybiera-kolumny-wedlug-nazwy","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/pandas-wybiera-kolumny-wedlug-nazwy\/","title":{"rendered":"Jak wybra\u0107 kolumny wed\u0142ug nazwy w pandach (3 przyk\u0142ady)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Aby wybra\u0107 kolumny wed\u0142ug nazwy w ramce DataFrame pandy, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cych metod:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Metoda 1: Wybierz kolumn\u0119 wed\u0142ug nazwy<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">loc<\/span> [:, ' <span style=\"color: #ff0000;\">column1<\/span> ']\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metoda 2: Wybierz wiele kolumn wed\u0142ug nazwy<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">loc<\/span> [:,[' <span style=\"color: #ff0000;\">column1<\/span> ',' <span style=\"color: #ff0000;\">column3<\/span> ',' <span style=\"color: #ff0000;\">column4<\/span> ']]<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metoda 3: Wybierz kolumny w zakresie wed\u0142ug nazwy<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">loc<\/span> [:, ' <span style=\"color: #ff0000;\">column2<\/span> ':' <span style=\"color: #ff0000;\">column4<\/span> ']<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce u\u017cywa\u0107 ka\u017cdej z tych metod z nast\u0119puj\u0105c\u0105 ramk\u0105 DataFrame pand:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">mavs<\/span> ': [10, 12, 14, 15, 19, 22, 27],\n                   ' <span style=\"color: #ff0000;\">cavs<\/span> ': [18, 22, 19, 14, 14, 11, 20],\n                   ' <span style=\"color: #ff0000;\">hornets<\/span> ': [5, 7, 7, 9, 12, 9, 14],\n                   ' <span style=\"color: #ff0000;\">spurs<\/span> ': [10, 12, 14, 13, 13, 19, 22],\n                   ' <span style=\"color: #ff0000;\">net<\/span> ': [10, 14, 25, 22, 25, 17, 12]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n   mavs cavs hornets spurs nets\n0 10 18 5 10 10\n1 12 22 7 12 14\n2 14 19 7 14 25\n3 15 14 9 13 22\n4 19 14 12 13 25\n5 22 11 9 19 17\n6 27 20 14 22 12\n<\/strong><\/span><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Wybierz kolumn\u0119 wed\u0142ug nazwy<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wybra\u0107 kolumn\u0119 \u201eostrogi\u201d w ramce DataFrame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#select column with name 'spurs'\n<\/span>df. <span style=\"color: #3366ff;\">loc<\/span> [:, ' <span style=\"color: #ff0000;\">spurs<\/span> ']\n\n0 10\n1 12\n2 14\n3 13\n4 13\n5 19\n6 22\nName: spurs, dtype: int64<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Zwracane s\u0105 tylko warto\u015bci z kolumny \u201eostrogi\u201d.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: wybierz wiele kolumn wed\u0142ug nazwy<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wybra\u0107 kolumny cavs, ostrogi i netto w ramce DataFrame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#select columns with names cavs, spurs, and nets\n<\/span>df. <span style=\"color: #3366ff;\">loc<\/span> [:, [' <span style=\"color: #ff0000;\">cavs<\/span> ', ' <span style=\"color: #ff0000;\">spurs<\/span> ', ' <span style=\"color: #ff0000;\">nets<\/span> ']]\n\n        cavs spurs nets\n0 18 10 10\n1 22 12 14\n2 19 14 25\n3 14 13 22\n4 14 13 25\n5 11 19 17\n6 20 22 12<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Zwracane s\u0105 tylko warto\u015bci kolumn cavs, ostrogi i netto.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 3: Wybierz kolumny w zakresie wed\u0142ug nazwy<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wybra\u0107 wszystkie kolumny pomi\u0119dzy nazwami \u201ehornets\u201d i \u201enet\u201d w ramce DataFrame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#select all columns between hornets and nets\n<\/span>df. <span style=\"color: #3366ff;\">loc<\/span> [:, ' <span style=\"color: #ff0000;\">hornets<\/span> ': ' <span style=\"color: #ff0000;\">nets<\/span> ']\n\n        hornets spurs nets\n0 5 10 10\n1 7 12 14\n2 7 14 25\n3 9 13 22\n4 12 13 25\n5 9 19 17\n6 14 22 12<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Zwracane s\u0105 wszystkie kolumny pomi\u0119dzy nazwami \u201eszerszenie\u201d i \u201enet\u201d.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe zadania w pandach:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/pandy-poruszaja-sie-od-kregos\u0142upa-do-przodu\/\" target=\"_blank\" rel=\"noopener\">Pandy: Jak przenie\u015b\u0107 kolumn\u0119 przed ramk\u0119 DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/pandas-sprawdza,-czy-kolumna-zawiera-ciag\/\" target=\"_blank\" rel=\"noopener\">Pandy: jak sprawdzi\u0107, czy kolumna zawiera ci\u0105g znak\u00f3w<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/pandy-dodaja-pusta-kolumne\/\" target=\"_blank\" rel=\"noopener\">Pandy: Jak doda\u0107 pust\u0105 kolumn\u0119 do DataFrame (3 przyk\u0142ady)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aby wybra\u0107 kolumny wed\u0142ug nazwy w ramce DataFrame pandy, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cych metod: Metoda 1: Wybierz kolumn\u0119 wed\u0142ug nazwy df. loc [:, &#8217; column1 &#8217;] Metoda 2: Wybierz wiele kolumn wed\u0142ug nazwy df. loc [:,[&#8217; column1 &#8217;,&#8217; column3 &#8217;,&#8217; column4 &#8217;]] Metoda 3: Wybierz kolumny w zakresie wed\u0142ug nazwy df. loc [:, &#8217; column2 &#8217;:&#8217; [&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-3434","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 nazwy w Pandach (3 przyk\u0142ady) - Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak wybiera\u0107 kolumny wed\u0142ug nazwy 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\/pandas-wybiera-kolumny-wedlug-nazwy\/\" \/>\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 nazwy w Pandach (3 przyk\u0142ady) - Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak wybiera\u0107 kolumny wed\u0142ug nazwy w ramce DataFrame pandy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/pandas-wybiera-kolumny-wedlug-nazwy\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-17T12:20:03+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\/pandas-wybiera-kolumny-wedlug-nazwy\/\",\"url\":\"https:\/\/statorials.org\/pl\/pandas-wybiera-kolumny-wedlug-nazwy\/\",\"name\":\"Jak wybra\u0107 kolumny wed\u0142ug nazwy w Pandach (3 przyk\u0142ady) - Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-17T12:20:03+00:00\",\"dateModified\":\"2023-07-17T12:20:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak wybiera\u0107 kolumny wed\u0142ug nazwy w ramce DataFrame pandy, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/pandas-wybiera-kolumny-wedlug-nazwy\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/pandas-wybiera-kolumny-wedlug-nazwy\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/pandas-wybiera-kolumny-wedlug-nazwy\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak wybra\u0107 kolumny wed\u0142ug nazwy w pandach (3 przyk\u0142ady)\"}]},{\"@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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