{"id":1453,"date":"2023-07-26T08:02:50","date_gmt":"2023-07-26T08:02:50","guid":{"rendered":"https:\/\/statorials.org\/pl\/dodaj-rownanie-regresji-do-wykresu-w-r\/"},"modified":"2023-07-26T08:02:50","modified_gmt":"2023-07-26T08:02:50","slug":"dodaj-rownanie-regresji-do-wykresu-w-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/dodaj-rownanie-regresji-do-wykresu-w-r\/","title":{"rendered":"Jak doda\u0107 r\u00f3wnanie regresji do wykresu w r"},"content":{"rendered":"

<\/p>\n

\n

Cz\u0119sto mo\u017cesz chcie\u0107 doda\u0107 r\u00f3wnanie regresji do wykresu w R w nast\u0119puj\u0105cy spos\u00f3b:<\/span> <\/p>\n

\"Dodaj<\/p>\n

Na szcz\u0119\u015bcie mo\u017cna to ca\u0142kiem \u0142atwo zrobi\u0107, korzystaj\u0105c z funkcji zawartych w pakietach ggplot2<\/strong> i ggpubr<\/strong> .<\/span><\/p>\n

W tym samouczku przedstawiono krok po kroku przyk\u0142ad u\u017cycia funkcji z tych pakiet\u00f3w w celu dodania r\u00f3wnania regresji do wykresu w j\u0119zyku R.<\/span><\/p>\n

Krok 1: Utw\u00f3rz dane<\/span><\/strong><\/h3>\n

Najpierw utw\u00f3rzmy fa\u0142szywe dane do pracy:<\/span><\/p>\n

 #make this example reproducible\n<\/span>set. seeds<\/span> (1)\n\n#create data frame\n<\/span>df <- data. frame<\/span> (x = c(1:100))\ndf$y <- 4*df$x + rnorm(100, sd=20)\n\n#view head of data frame\n<\/span>head(df)\n\n  xy\n1 1 -8.529076\n2 2 11.672866\n3 3 -4.712572\n4 4 47.905616\n5 5 26.590155\n6 6 7.590632<\/strong><\/pre>\n
 Krok 2: Utw\u00f3rz wykres z r\u00f3wnaniem regresji<\/span><\/strong><\/h3>\n
 Nast\u0119pnie u\u017cyjemy nast\u0119puj\u0105cej sk\u0142adni, aby utworzy\u0107 wykres rozrzutu z dopasowan\u0105 lini\u0105 regresji i r\u00f3wnaniem:<\/span> <\/p>\n
 #load necessary libraries\n<\/span>library<\/span> (ggplot2)\nlibrary<\/span> (ggpubr)\n\n#create plot with regression line and regression equation\n<\/span>ggplot(data=df, aes<\/span> (x=x, y=y)) +\n        geom_smooth(method=\" lm<\/span> \") +\n        geom_point() +\n        stat_regline_equation(label. x<\/span> =30, label. y<\/span> =310)<\/strong> <\/pre>\n
\"Dodaj<\/p>\n
 To m\u00f3wi nam, \u017ce dopasowane r\u00f3wnanie regresji ma posta\u0107:<\/span><\/p>\n
 y = 2,6 + 4*(x)<\/span><\/strong><\/p>\n
 Nale\u017cy pami\u0119ta\u0107, \u017ce etykiety.x<\/strong> i label.y<\/strong> okre\u015blaj\u0105 wsp\u00f3\u0142rz\u0119dne (x,y) r\u00f3wnania regresji do wy\u015bwietlenia.<\/span><\/p>\n
 Krok 3: Dodaj kwadrat R do wykresu (opcjonalnie)<\/span><\/strong><\/h3>\n
 Mo\u017cesz tak\u017ce doda\u0107 warto\u015b\u0107 R do kwadratu modelu regresji, je\u015bli chcesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni:<\/span> <\/p>\n
 #load necessary libraries\n<\/span>library<\/span> (ggplot2)\nlibrary<\/span> (ggpubr)\n\n#create plot with regression line, regression equation, and R-squared\n<\/span>ggplot(data=df, aes<\/span> (x=x, y=y)) +\n        geom_smooth(method=\" lm<\/span> \") +\n        geom_point() +\n        stat_regline_equation(label. x<\/span> =30, label. y<\/span> =310) +\nstat_cor( aes<\/span> (label=..rr.label..), label. x<\/span> =30, label. y<\/span> =290)<\/strong> <\/pre>\n
\"Linia<\/p>\n
 Okazuje si\u0119, \u017ce R-kwadrat<\/a> dla tego modelu wynosi 0,98<\/strong> .<\/span><\/p>\n
\n
 Wi\u0119cej samouczk\u00f3w dotycz\u0105cych j\u0119zyka R mo\u017cna znale\u017a\u0107 na tej stronie<\/a> .<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
Cz\u0119sto mo\u017cesz chcie\u0107 doda\u0107 r\u00f3wnanie regresji do wykresu w R w nast\u0119puj\u0105cy spos\u00f3b: Na szcz\u0119\u015bcie mo\u017cna to ca\u0142kiem \u0142atwo zrobi\u0107, korzystaj\u0105c z funkcji zawartych w pakietach ggplot2 i ggpubr . W tym samouczku przedstawiono krok po kroku przyk\u0142ad u\u017cycia funkcji z tych pakiet\u00f3w w celu dodania r\u00f3wnania regresji do wykresu w j\u0119zyku R. Krok 1: […]<\/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-1453","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak doda\u0107 r\u00f3wnanie regresji do wykresu w R<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak doda\u0107 r\u00f3wnanie regresji do wykresu w j\u0119zyku R, podaj\u0105c przyk\u0142ad 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\/dodaj-rownanie-regresji-do-wykresu-w-r\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak doda\u0107 r\u00f3wnanie regresji do wykresu w R\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak doda\u0107 r\u00f3wnanie regresji do wykresu w j\u0119zyku R, podaj\u0105c przyk\u0142ad krok po kroku.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/dodaj-rownanie-regresji-do-wykresu-w-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-26T08:02:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/regequationr1.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\/dodaj-rownanie-regresji-do-wykresu-w-r\/\",\"url\":\"https:\/\/statorials.org\/pl\/dodaj-rownanie-regresji-do-wykresu-w-r\/\",\"name\":\"Jak doda\u0107 r\u00f3wnanie regresji do wykresu w R\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-26T08:02:50+00:00\",\"dateModified\":\"2023-07-26T08:02:50+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak doda\u0107 r\u00f3wnanie regresji do wykresu w j\u0119zyku R, podaj\u0105c przyk\u0142ad krok po kroku.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/dodaj-rownanie-regresji-do-wykresu-w-r\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/dodaj-rownanie-regresji-do-wykresu-w-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/dodaj-rownanie-regresji-do-wykresu-w-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak doda\u0107 r\u00f3wnanie regresji do wykresu w r\"}]},{\"@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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