{"id":2333,"date":"2023-07-22T17:37:07","date_gmt":"2023-07-22T17:37:07","guid":{"rendered":"https:\/\/statorials.org\/pl\/pandy-zmieniaja-wartosci-indeksow\/"},"modified":"2023-07-22T17:37:07","modified_gmt":"2023-07-22T17:37:07","slug":"pandy-zmieniaja-wartosci-indeksow","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/pandy-zmieniaja-wartosci-indeksow\/","title":{"rendered":"Jak zmodyfikowa\u0107 jedn\u0105 lub wi\u0119cej warto\u015bci indeksu w pandach"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby zmodyfikowa\u0107 pojedyncz\u0105 warto\u015b\u0107 indeksu w ramce DataFrame pandy:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">rename<\/span> (index={' <span style=\"color: #ff0000;\">Old_Value<\/span> ':' <span style=\"color: #ff0000;\">New_Value<\/span> '}, inplace= <span style=\"color: #008000;\">True<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Mo\u017cesz tak\u017ce u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby zmodyfikowa\u0107 wiele warto\u015bci indeksu jednocze\u015bnie:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">rename<\/span> (index={' <span style=\"color: #ff0000;\">Old1<\/span> ':' <span style=\"color: #ff0000;\">New1<\/span> ', ' <span style=\"color: #ff0000;\">Old2<\/span> ':' <span style=\"color: #ff0000;\">New2<\/span> '}, inplace= <span style=\"color: #008000;\">True<\/span> )<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak u\u017cywa\u0107 tej sk\u0142adni w praktyce.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Zmie\u0144 warto\u015b\u0107 indeksu w Pandas DataFrame<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 ramk\u0119 DataFrame pand:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd<span style=\"color: #008080;\"><span style=\"color: #000000;\">\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [25, 12, 15, 14, 19, 23, 25, 29],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n\n<span style=\"color: #008080;\">#make 'team' column the index column\n<\/span>df. <span style=\"color: #3366ff;\">set_index<\/span> (' <span style=\"color: #ff0000;\">team<\/span> ', inplace= <span style=\"color: #008000;\">True<\/span> )\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tpoints assists rebounds\nteam\t\t\t\nA 25 5 11\nB 12 7 8\nC 15 7 10\nD 14 9 6\nE 19 12 6\nF 23 9 5\nG 25 9 9\nH 29 4 12\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Mo\u017cemy u\u017cy\u0107 poni\u017cszego kodu, aby zast\u0105pi\u0107 warto\u015b\u0107 \u201eA\u201d w kolumnie indeksu warto\u015bci\u0105 \u201eP\u201d:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#replace 'A' with 'P' in index\n<span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">rename<\/span> (index={' <span style=\"color: #ff0000;\">A<\/span> ':' <span style=\"color: #ff0000;\">P<\/span> '}, inplace= <span style=\"color: #008000;\">True<\/span> )\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span>df\n\n        points assists rebounds\nteam\t\t\t\nP 25 5 11\nB 12 7 8\nC 15 7 10\nD 14 9 6\nE 19 12 6\nF 23 9 5\nG 25 9 9\nH 29 4 12<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Nale\u017cy zauwa\u017cy\u0107, \u017ce warto\u015b\u0107 \u201eA\u201d w oryginalnym indeksie zosta\u0142a zast\u0105piona, podczas gdy wszystkie pozosta\u0142e warto\u015bci pozosta\u0142y takie same.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Zmie\u0144 wiele warto\u015bci indeksu w Pandas DataFrame<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce mamy t\u0119 sam\u0105 ramk\u0119 DataFrame pand jak poprzednio:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tpoints assists rebounds\nteam\t\t\t\nA 25 5 11\nB 12 7 8\nC 15 7 10\nD 14 9 6\nE 19 12 6\nF 23 9 5\nG 25 9 9\nH 29 4 12\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Do zast\u0105pienia warto\u015bci \u201eA\u201d i \u201eB\u201d w kolumnie indeksu mo\u017cemy u\u017cy\u0107 nast\u0119puj\u0105cego kodu:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#replace 'A' with 'P' and replace 'B' with 'Q' in index\n<span style=\"color: #000000;\">df. <span style=\"color: #3366ff;\">rename<\/span> (index={' <span style=\"color: #ff0000;\">A<\/span> ':' <span style=\"color: #ff0000;\">P<\/span> ', ' <span style=\"color: #ff0000;\">B<\/span> ':' <span style=\"color: #ff0000;\">Q<\/span> '}, inplace= <span style=\"color: #008000;\">True<\/span> )\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span>df\n\n\tpoints assists rebounds\nteam\t\t\t\nP 25 5 11\nQ 12 7 8\nC 15 7 10\nD 14 9 6\nE 19 12 6\nF 23 9 5\nG 25 9 9\nH 29 4 12\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Nale\u017cy pami\u0119ta\u0107, \u017ce warto\u015bci \u201eA\u201d i \u201eB\u201d w oryginalnym indeksie zosta\u0142y zast\u0105pione, podczas gdy wszystkie pozosta\u0142e warto\u015bci pozosta\u0142y takie same.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Mo\u017cesz u\u017cy\u0107 dok\u0142adnie tej samej sk\u0142adni, aby zast\u0105pi\u0107 dowoln\u0105 liczb\u0119 warto\u015bci w indeksie.<\/span><\/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\/pandy-resetuja-indeks\/\" target=\"_blank\" rel=\"noopener\">Jak zresetowa\u0107 indeks w Pandas DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/pandy-ustawiaja-kolumne-jako-indeks\/\" target=\"_blank\" rel=\"noopener\">Jak ustawi\u0107 kolumn\u0119 jako indeks w Pandach<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/pandy-konwertuja-indeks-na-kolumne\/\" target=\"_blank\" rel=\"noopener\">Jak przekonwertowa\u0107 indeks na kolumn\u0119 w Pandach<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby zmodyfikowa\u0107 pojedyncz\u0105 warto\u015b\u0107 indeksu w ramce DataFrame pandy: df. rename (index={&#8217; Old_Value &#8217;:&#8217; New_Value &#8217;}, inplace= True ) Mo\u017cesz tak\u017ce u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby zmodyfikowa\u0107 wiele warto\u015bci indeksu jednocze\u015bnie: df. rename (index={&#8217; Old1 &#8217;:&#8217; New1 &#8217;, &#8217; Old2 &#8217;:&#8217; New2 &#8217;}, inplace= True ) Poni\u017csze przyk\u0142ady pokazuj\u0105, jak u\u017cywa\u0107 tej [&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-2333","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 zmodyfikowa\u0107 jedn\u0105 lub wi\u0119cej warto\u015bci indeksu w Pandach - Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak zmieni\u0107 jedn\u0105 lub wi\u0119cej warto\u015bci w kolumnie indeksu pandy DataFrame, \u0142\u0105cznie z przyk\u0142adami.\" \/>\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-wartosci-indeksow\/\" \/>\n<meta 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