{"id":1049,"date":"2023-07-27T20:28:44","date_gmt":"2023-07-27T20:28:44","guid":{"rendered":"https:\/\/statorials.org\/pl\/test-pythona-dunnsa\/"},"modified":"2023-07-27T20:28:44","modified_gmt":"2023-07-27T20:28:44","slug":"test-pythona-dunnsa","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/test-pythona-dunnsa\/","title":{"rendered":"Jak wykona\u0107 test dunna w pythonie"},"content":{"rendered":"<p><\/p>\n<hr>\n<p>Test <span style=\"color: #000000;\">Kruskala<\/span> <a href=\"https:\/\/statorials.org\/pl\/test-kruskala-wallisa\/\" target=\"_blank\" rel=\"noopener noreferrer\">-Wallisa<\/a> <span style=\"color: #000000;\">s\u0142u\u017cy do okre\u015blenia, czy istnieje statystycznie istotna r\u00f3\u017cnica mi\u0119dzy medianami trzech lub wi\u0119cej niezale\u017cnych grup. Uwa\u017ca si\u0119, \u017ce jest to nieparametryczny odpowiednik<\/span> <a href=\"https:\/\/statorials.org\/pl\/w-jedna-strone,-anova\/\" target=\"_blank\" rel=\"noopener noreferrer\">jednokierunkowej analizy wariancji ANOVA<\/a> .<\/p>\n<p> <span style=\"color: #000000;\">Je\u017celi wyniki testu Kruskala-Wallisa s\u0105 istotne statystycznie, w\u00f3wczas wskazane jest wykonanie<\/span> <a href=\"https:\/\/statorials.org\/pl\/nie-wiem-test\/\" target=\"_blank\" rel=\"noopener noreferrer\">testu Dunna<\/a> <span style=\"color: #000000;\">, aby dok\u0142adnie okre\u015bli\u0107, kt\u00f3re grupy si\u0119 r\u00f3\u017cni\u0105.<\/span><\/p>\n<p> <span style=\"color: #000000;\">W tym samouczku wyja\u015bniono, jak wykona\u0107 test Dunna w j\u0119zyku Python.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad: test Dunna w Pythonie<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Naukowcy chc\u0105 wiedzie\u0107, czy trzy r\u00f3\u017cne nawozy prowadz\u0105 do r\u00f3\u017cnych poziom\u00f3w wzrostu ro\u015blin. Losowo wybieraj\u0105 30 r\u00f3\u017cnych ro\u015blin i dziel\u0105 je na trzy grupy po 10, stosuj\u0105c do ka\u017cdej grupy inny naw\u00f3z. Po miesi\u0105cu mierz\u0105 wysoko\u015b\u0107 ka\u017cdej ro\u015bliny.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Po przeprowadzeniu testu Kruskala-Wallisa odkryli, \u017ce og\u00f3lna warto\u015b\u0107 p jest statystycznie istotna, co oznacza, \u017ce mediana wzrostu nie jest taka sama we wszystkich trzech grupach. Nast\u0119pnie wykonuj\u0105 test Dunna, aby dok\u0142adnie okre\u015bli\u0107, kt\u00f3re grupy s\u0105 r\u00f3\u017cne.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Aby wykona\u0107 test Dunna w Pythonie, mo\u017cemy u\u017cy\u0107 funkcji <a href=\"https:\/\/scikit-posthocs.readthedocs.io\/en\/latest\/generated\/scikit_posthocs.posthoc_dunn\/\" target=\"_blank\" rel=\"noopener noreferrer\">posthoc_dunn()<\/a> z biblioteki scikit-posthocs.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak u\u017cywa\u0107 tej funkcji:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Krok 1: Zainstaluj scikit-posthocs.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Najpierw musimy zainstalowa\u0107 bibliotek\u0119 scikit-posthocs:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>pip <span style=\"color: #008000;\">install<\/span> scikit-posthocs\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Krok 2: Wykonaj test Dunna.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Nast\u0119pnie mo\u017cemy utworzy\u0107 dane i wykona\u0107 test Dunna:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#specify the growth of the 10 plants in each group<\/span>\ngroup1 = [7, 14, 14, 13, 12, 9, 6, 14, 12, 8]\ngroup2 = [15, 17, 13, 15, 15, 13, 9, 12, 10, 8]\ngroup3 = [6, 8, 8, 9, 5, 14, 13, 8, 10, 9]\ndata = [group1, group2, group3]\n\n<span style=\"color: #008080;\">#perform Dunn's test using a Bonferonni correction for the p-values\n<span style=\"color: #000000;\"><span style=\"color: #008000;\">import<\/span> scikit_posthocs <span style=\"color: #008000;\">as<\/span> sp<\/span>\n<span style=\"color: #000000;\">sp. <span style=\"color: #3366ff;\">posthoc_dunn<\/span> (data, p_adjust = ' <span style=\"color: #008000;\">bonferroni<\/span> ')\n\n               1 2 3\n1 1.000000 0.550846 0.718451\n2 0.550846 1.000000 0.036633\n3 0.718451 0.036633 1.000000<\/span><\/span>\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Nale\u017cy zauwa\u017cy\u0107, \u017ce zdecydowali\u015bmy si\u0119 u\u017cy\u0107 poprawki Bonferroniego dla warto\u015bci p w celu kontrolowania <a href=\"https:\/\/statorials.org\/pl\/wspo\u0142czynnik-b\u0142edow-rodzinnych\/\" target=\"_blank\" rel=\"noopener noreferrer\">wsp\u00f3\u0142czynnika b\u0142\u0119d\u00f3w rodzinnych<\/a> , ale inne potencjalne mo\u017cliwo\u015bci argumentu <strong>p_regulacji<\/strong> obejmuj\u0105:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">sidak<\/span><\/li>\n<li> <span style=\"color: #000000;\">Holma-Sidaka<\/span><\/li>\n<li> <span style=\"color: #000000;\">Simes Hochberg<\/span><\/li>\n<li> <span style=\"color: #000000;\">m\u0119\u017cczyzna<\/span><\/li>\n<li> <span style=\"color: #000000;\">fdr_bh<\/span><\/li>\n<li> <span style=\"color: #000000;\">fdr_by<\/span><\/li>\n<li> <span style=\"color: #000000;\">fdr_tsbh<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Wi\u0119cej szczeg\u00f3\u0142\u00f3w na temat ka\u017cdej z metod dostosowywania warto\u015bci p mo\u017cna znale\u017a\u0107 w <a href=\"https:\/\/scikit-posthocs.readthedocs.io\/en\/latest\/generated\/scikit_posthocs.posthoc_dunn\/\" target=\"_blank\" rel=\"noopener noreferrer\">dokumentacji<\/a> .<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Krok 3: Interpretacja wynik\u00f3w.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Na podstawie wynik\u00f3w testu Dunna mo\u017cemy zaobserwowa\u0107, co nast\u0119puje:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Skorygowana warto\u015b\u0107 p dla r\u00f3\u017cnicy mi\u0119dzy grup\u0105 1 a grup\u0105 2 wynosi <strong>0,550846<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Skorygowana warto\u015b\u0107 p dla r\u00f3\u017cnicy mi\u0119dzy grup\u0105 1 a grup\u0105 3 wynosi <strong>0,718451<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Skorygowana warto\u015b\u0107 p dla r\u00f3\u017cnicy mi\u0119dzy grup\u0105 2 i grup\u0105 3 wynosi <strong>0,036633<\/strong> .<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Zatem jedynymi dwiema grupami, kt\u00f3re r\u00f3\u017cni\u0105 si\u0119 statystycznie istotnie przy \u03b1 = 0,05, s\u0105 grupy 2 i 3.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pl\/nie-wiem-test\/\" target=\"_blank\" rel=\"noopener noreferrer\">Wprowadzenie do testu Dunna do por\u00f3wna\u0144 wielokrotnych<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/test-dunnsa-w-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Jak wykona\u0107 test Dunna w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Test Kruskala -Wallisa s\u0142u\u017cy do okre\u015blenia, czy istnieje statystycznie istotna r\u00f3\u017cnica mi\u0119dzy medianami trzech lub wi\u0119cej niezale\u017cnych grup. Uwa\u017ca si\u0119, \u017ce jest to nieparametryczny odpowiednik jednokierunkowej analizy wariancji ANOVA . Je\u017celi wyniki testu Kruskala-Wallisa s\u0105 istotne statystycznie, w\u00f3wczas wskazane jest wykonanie testu Dunna , aby dok\u0142adnie okre\u015bli\u0107, kt\u00f3re grupy si\u0119 r\u00f3\u017cni\u0105. W tym samouczku wyja\u015bniono, [&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-1049","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 wykona\u0107 test Dunna w Pythonie - Statologia<\/title>\n<meta name=\"description\" content=\"Proste wyja\u015bnienie sposobu wykonania testu Dunna w Pythonie, \u0142\u0105cznie z przyk\u0142adem krok po kroku.\" \/>\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\/test-pythona-dunnsa\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak wykona\u0107 test Dunna w Pythonie - Statologia\" \/>\n<meta property=\"og:description\" content=\"Proste wyja\u015bnienie sposobu wykonania testu Dunna w Pythonie, \u0142\u0105cznie z przyk\u0142adem krok po kroku.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/test-pythona-dunnsa\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T20:28:44+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\/test-pythona-dunnsa\/\",\"url\":\"https:\/\/statorials.org\/pl\/test-pythona-dunnsa\/\",\"name\":\"Jak wykona\u0107 test Dunna w Pythonie - Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-27T20:28:44+00:00\",\"dateModified\":\"2023-07-27T20:28:44+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"Proste wyja\u015bnienie sposobu wykonania testu Dunna w Pythonie, \u0142\u0105cznie z przyk\u0142adem krok po kroku.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/test-pythona-dunnsa\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/test-pythona-dunnsa\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/test-pythona-dunnsa\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak wykona\u0107 test dunna w pythonie\"}]},{\"@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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