{"id":3317,"date":"2023-07-18T03:06:21","date_gmt":"2023-07-18T03:06:21","guid":{"rendered":"https:\/\/statorials.org\/pl\/pandy-zwracaja-maksymalna-linie\/"},"modified":"2023-07-18T03:06:21","modified_gmt":"2023-07-18T03:06:21","slug":"pandy-zwracaja-maksymalna-linie","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/pandy-zwracaja-maksymalna-linie\/","title":{"rendered":"Pandy: zwracaj\u0105 wiersz z maksymaln\u0105 warto\u015bci\u0105 w okre\u015blonej kolumnie"},"content":{"rendered":"

<\/p>\n

\n

Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cych metod, aby zwr\u00f3ci\u0107 wiersz ramki DataFrame pandy, kt\u00f3ry zawiera maksymaln\u0105 warto\u015b\u0107 w okre\u015blonej kolumnie:<\/span><\/p>\n

Metoda 1: Zwr\u00f3\u0107 wiersz z maksymaln\u0105 warto\u015bci\u0105<\/strong><\/span><\/p>\n

 df[df[' my_column<\/span> '] == df[' my_column<\/span> ']. max<\/span> ()]\n<\/strong><\/pre>\n
 Metoda 2: Zwr\u00f3\u0107 indeks wiersza z warto\u015bci\u0105 maksymaln\u0105<\/strong><\/span><\/p>\n
 df[' my_column<\/span> ']. idxmax<\/span> ()<\/span><\/span><\/strong><\/pre>\n
 Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce u\u017cywa\u0107 ka\u017cdej metody z nast\u0119puj\u0105c\u0105 ramk\u0105 DataFrame pand:<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#createDataFrame\n<\/span>df = pd. DataFrame<\/span> ({' team<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'],\n                   ' points<\/span> ': [18, 22, 19, 14, 14, 11, 28, 20],\n                   ' assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n#view DataFrame\n<\/span>print<\/span> (df)\n\n  team points assists rebounds\n0 A 18 5 11\n1 B 22 7 8\n2 C 19 7 10\n3 D 14 9 6\n4 E 14 12 6\n5 F 11 9 5\n6 G 28 9 9\n7:20 a.m. 4:12<\/strong><\/span><\/pre>\n
 Przyk\u0142ad 1: Zwr\u00f3\u0107 wiersz z maksymaln\u0105 warto\u015bci\u0105<\/strong><\/span><\/h2>\n
 Poni\u017cszy kod pokazuje, jak zwr\u00f3ci\u0107 wiersz DataFrame z maksymaln\u0105 warto\u015bci\u0105 w kolumnie punkt\u00f3w<\/strong> :<\/span><\/p>\n
 #return row with max value in points column\n<\/span>df[df[' points<\/span> '] == df[' points<\/span> ']. max<\/span> ()]\n\n        team points assists rebounds\n6 G 28 9 9\n<\/strong><\/span><\/pre>\n
 Maksymalna warto\u015b\u0107 w kolumnie punkt\u00f3w wynosi\u0142a 28<\/strong> , wi\u0119c zwr\u00f3cony zosta\u0142 wiersz zawieraj\u0105cy t\u0119 warto\u015b\u0107.<\/span><\/p>\n
 Przyk\u0142ad 2: Zwr\u00f3\u0107 indeks wiersza z maksymaln\u0105 warto\u015bci\u0105<\/strong><\/span><\/h2>\n
 Poni\u017cszy kod pokazuje, jak zwr\u00f3ci\u0107 tylko indeks wiersza z maksymaln\u0105 warto\u015bci\u0105 w kolumnie punkt\u00f3w<\/strong> :<\/span><\/p>\n
 #return row that contains max value in points column\ndf[' points<\/span> ']. idxmax<\/span> ()\n\n6<\/span><\/span><\/strong><\/span><\/pre>\n
 Wiersz na pozycji indeksu 6<\/strong> zawiera\u0142 maksymaln\u0105 warto\u015b\u0107 w kolumnie punkt\u00f3w<\/strong> , wi\u0119c zwr\u00f3cono warto\u015b\u0107 6<\/strong> .<\/span><\/span><\/p>\n
 Powi\u0105zane:<\/strong> Jak u\u017cywa\u0107 funkcji idxmax() w Pandach (z przyk\u0142adami)<\/a><\/span><\/p>\n
 Dodatkowe zasoby<\/strong><\/span><\/h2>\n
 Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe zadania w pandach:<\/span><\/p>\n
 Jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w Pandas<\/a>
 Jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 kolumn w Pandach<\/p>\n","protected":false},"excerpt":{"rendered":"
Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cych metod, aby zwr\u00f3ci\u0107 wiersz ramki DataFrame pandy, kt\u00f3ry zawiera maksymaln\u0105 warto\u015b\u0107 w okre\u015blonej kolumnie: Metoda 1: Zwr\u00f3\u0107 wiersz z maksymaln\u0105 warto\u015bci\u0105 df[df[’ my_column ’] == df[’ my_column ’]. max ()] Metoda 2: Zwr\u00f3\u0107 indeks wiersza z warto\u015bci\u0105 maksymaln\u0105 df[’ my_column ’]. idxmax () Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce u\u017cywa\u0107 ka\u017cdej metody […]<\/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-3317","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nPandy: zwracaj\u0105 wiersz z maksymaln\u0105 warto\u015bci\u0105 w danej kolumnie \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"W 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