{"id":1373,"date":"2023-07-26T15:50:37","date_gmt":"2023-07-26T15:50:37","guid":{"rendered":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/"},"modified":"2023-07-26T15:50:37","modified_gmt":"2023-07-26T15:50:37","slug":"linia-regresji-ggplot-wedlug-grup","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/","title":{"rendered":"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Mo\u017cemy u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby wykre\u015bli\u0107 lini\u0119 regresji grupowej za pomoc\u0105 pakietu wizualizacji R <a href=\"https:\/\/ggplot2.tidyverse.org\/\" target=\"_blank\" rel=\"noopener\">ggplot2<\/a> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>ggplot(df, <span style=\"color: #3366ff;\">aes<\/span> (x = x_variable, y = y_variable, color = group_variable)) +\n  geom_point() +\n  geom_smooth(method = \" <span style=\"color: #008000;\">lm<\/span> \", fill = <span style=\"color: #008000;\">NA<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">W tym samouczku przedstawiono kr\u00f3tki przyk\u0142ad wykorzystania tej funkcji w praktyce.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad: wykre\u015blanie linii regresji wed\u0142ug grup za pomoc\u0105 ggplot2<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105cy zbi\u00f3r danych, kt\u00f3ry pokazuje nast\u0119puj\u0105ce trzy zmienne dla 15 r\u00f3\u017cnych uczni\u00f3w:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Liczba godzin nauki<\/span><\/li>\n<li> <span style=\"color: #000000;\">Otrzymano wynik egzaminu<\/span><\/li>\n<li> <span style=\"color: #000000;\">Zastosowana technika badania (A, B lub C)<\/span><\/li>\n<\/ul>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create dataset\n<span style=\"color: #000000;\">df &lt;- data.frame(hours=c(1, 2, 3, 3, 4, 1, 2, 2, 3, 4, 1, 2, 3, 4, 4),\n                 score=c(84, 86, 85, 87, 94, 74, 76, 75, 77, 79, 65, 67, 69, 72, 80),\n                 technique= <span style=\"color: #3366ff;\">rep<\/span> (c(' <span style=\"color: #008000;\">A<\/span> ', ' <span style=\"color: #008000;\">B<\/span> ', ' <span style=\"color: #008000;\">C<\/span> '), <span style=\"color: #3366ff;\">each<\/span> = <span style=\"color: #008000;\">5<\/span> ))<\/span><\/span>\n\n<span style=\"color: #008080;\">#view dataset<\/span>\ndf\n\n   hours technical score\n1 1 84 A\n2 2 86 A\n3 3 85 A\n4 3 87 A\n5 4 94 A\n6 1 74 B\n7 2 76 B\n8 2 75 B\n9 3 77 B\n10 4 79 B\n11 1 65 C\n12 2 67 C\n13 3 69 C\n14 4 72 C\n15 4 80 C\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wykre\u015bli\u0107 lini\u0119 regresji, kt\u00f3ra odzwierciedla zwi\u0105zek mi\u0119dzy przestudiowanymi godzinami a wynikami egzaminu dla ka\u017cdej z trzech technik uczenia si\u0119:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load ggplot2\n<span style=\"color: #000000;\"><span style=\"color: #993300;\">library<\/span> (ggplot2)\n<\/span><\/span>\n<span style=\"color: #008080;\">#create regression lines for all three groups\n<span style=\"color: #000000;\">ggplot(df, <span style=\"color: #3366ff;\">aes<\/span> (x = hours, y = score, color = technique)) +\n  geom_point() +\n  geom_smooth(method = \" <span style=\"color: #008000;\">lm<\/span> \", fill = <span style=\"color: #008000;\">NA<\/span> )\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-13633 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/regressionlinegroupr1.png\" alt=\"Linia regresji wed\u0142ug grup w ggplot2\" width=\"451\" height=\"452\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Zauwa\u017c, \u017ce w <strong>geom_smooth()<\/strong> u\u017cyli\u015bmy metody = 'lm&#8217;, aby okre\u015bli\u0107 trend liniowy.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Mo\u017cemy r\u00f3wnie\u017c zastosowa\u0107 inne metody wyg\u0142adzania, takie jak \u201eglm\u201d, \u201eloess\u201d lub \u201egam\u201d, aby uchwyci\u0107 nieliniowe trendy w danych. Pe\u0142n\u0105 dokumentacj\u0119 funkcji geom_smooth() mo\u017cna znale\u017a\u0107 <a href=\"https:\/\/ggplot2.tidyverse.org\/reference\/geom_smooth.html\" target=\"_blank\" rel=\"noopener\">tutaj<\/a> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Pami\u0119taj, \u017ce mo\u017cemy r\u00f3wnie\u017c u\u017cy\u0107 r\u00f3\u017cnych kszta\u0142t\u00f3w do wy\u015bwietlenia wynik\u00f3w egzaminu dla ka\u017cdej z trzech grup:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">ggplot(df, <span style=\"color: #3366ff;\">aes<\/span> (x = hours, y = score, color = technique, shape = technique)) +\n  geom_point() +\n  geom_smooth(method = \" <span style=\"color: #008000;\">lm<\/span> \", fill = <span style=\"color: #008000;\">NA<\/span> )\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-13634 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/regressionlinegroupr2.png\" alt=\"Wiele linii regresji na jednym wykresie w ggplot2\" width=\"453\" height=\"461\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Wi\u0119cej samouczk\u00f3w dotycz\u0105cych ggplot2 znajdziesz <a href=\"https:\/\/statorials.org\" target=\"_blank\" rel=\"noopener\">tutaj<\/a> .<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mo\u017cemy u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby wykre\u015bli\u0107 lini\u0119 regresji grupowej za pomoc\u0105 pakietu wizualizacji R ggplot2 : ggplot(df, aes (x = x_variable, y = y_variable, color = group_variable)) + geom_point() + geom_smooth(method = &#8221; lm &#8222;, fill = NA ) W tym samouczku przedstawiono kr\u00f3tki przyk\u0142ad wykorzystania tej funkcji w praktyce. Przyk\u0142ad: wykre\u015blanie linii regresji wed\u0142ug [&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-1373","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 wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2<\/title>\n<meta name=\"description\" content=\"W tym samouczku przedstawiono krok po kroku przyk\u0142ad wykre\u015blania linii regresji na podstawie grup w ggplot2.\" \/>\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\/linia-regresji-ggplot-wedlug-grup\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku przedstawiono krok po kroku przyk\u0142ad wykre\u015blania linii regresji na podstawie grup w ggplot2.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-26T15:50:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/regressionlinegroupr1.png\" \/>\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\/linia-regresji-ggplot-wedlug-grup\/\",\"url\":\"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/\",\"name\":\"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-26T15:50:37+00:00\",\"dateModified\":\"2023-07-26T15:50:37+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku przedstawiono krok po kroku przyk\u0142ad wykre\u015blania linii regresji na podstawie grup w ggplot2.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2\"}]},{\"@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. Dzi\u0119ki bogatemu do\u015bwiadczeniu i wiedzy specjalistycznej w dziedzinie statystyki ch\u0119tnie dziel\u0119 si\u0119 swoj\u0105 wiedz\u0105, aby wzmocni\u0107 pozycj\u0119 uczni\u00f3w za po\u015brednictwem Statorials. Wiedzie\u0107 wi\u0119cej\",\"sameAs\":[\"https:\/\/statorials.org\/pl\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2","description":"W tym samouczku przedstawiono krok po kroku przyk\u0142ad wykre\u015blania linii regresji na podstawie grup w ggplot2.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/","og_locale":"pl_PL","og_type":"article","og_title":"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2","og_description":"W tym samouczku przedstawiono krok po kroku przyk\u0142ad wykre\u015blania linii regresji na podstawie grup w ggplot2.","og_url":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/","og_site_name":"Statorials","article_published_time":"2023-07-26T15:50:37+00:00","og_image":[{"url":"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/regressionlinegroupr1.png"}],"author":"Benjamin Anderson","twitter_card":"summary_large_image","twitter_misc":{"Napisane przez":"Benjamin Anderson","Szacowany czas czytania":"2 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/","url":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/","name":"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2","isPartOf":{"@id":"https:\/\/statorials.org\/pl\/#website"},"datePublished":"2023-07-26T15:50:37+00:00","dateModified":"2023-07-26T15:50:37+00:00","author":{"@id":"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965"},"description":"W tym samouczku przedstawiono krok po kroku przyk\u0142ad wykre\u015blania linii regresji na podstawie grup w ggplot2.","breadcrumb":{"@id":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/#breadcrumb"},"inLanguage":"pl-PL","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/pl\/linia-regresji-ggplot-wedlug-grup\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom","item":"https:\/\/statorials.org\/pl\/"},{"@type":"ListItem","position":2,"name":"Jak wykre\u015bli\u0107 lini\u0119 regresji wed\u0142ug grupy za pomoc\u0105 ggplot2"}]},{"@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. Dzi\u0119ki bogatemu do\u015bwiadczeniu i wiedzy specjalistycznej w dziedzinie statystyki ch\u0119tnie dziel\u0119 si\u0119 swoj\u0105 wiedz\u0105, aby wzmocni\u0107 pozycj\u0119 uczni\u00f3w za po\u015brednictwem Statorials. Wiedzie\u0107 wi\u0119cej","sameAs":["https:\/\/statorials.org\/pl"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/posts\/1373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/comments?post=1373"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/posts\/1373\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/media?parent=1373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/categories?post=1373"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/tags?post=1373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}