{"id":3451,"date":"2023-07-17T10:17:33","date_gmt":"2023-07-17T10:17:33","guid":{"rendered":"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/"},"modified":"2023-07-17T10:17:33","modified_gmt":"2023-07-17T10:17:33","slug":"aov-vs-anova-di-sungai","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/","title":{"rendered":"Kapan menggunakan aov() versus anova() di r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Fungsi <strong>aov()<\/strong> dan <strong>anova()<\/strong> di R tampak serupa, namun sebenarnya kami menggunakannya dalam dua skenario berbeda.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kami menggunakan <strong>aov()<\/strong> ketika kami ingin menyesuaikan model ANOVA dan menampilkan hasilnya dalam tabel ringkasan ANOVA.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kami menggunakan <strong>anova()<\/strong> ketika kami ingin membandingkan kesesuaian model regresi bertingkat untuk menentukan apakah model regresi dengan sekumpulan koefisien tertentu memberikan kesesuaian yang jauh lebih baik daripada model yang hanya memiliki sebagian koefisien.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan setiap fungsi dalam praktik.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 1: Cara menggunakan aov() di R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Katakanlah kita ingin melakukan <a href=\"https:\/\/statorials.org\/id\/anova-satu-arah\/\" target=\"_blank\" rel=\"noopener\">ANOVA satu arah<\/a> untuk menentukan apakah tiga program olahraga berbeda memiliki dampak berbeda terhadap penurunan berat badan.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kami merekrut 90 orang untuk berpartisipasi dalam eksperimen di mana kami secara acak menugaskan 30 orang untuk mengikuti Program A, Program B, atau Program C selama sebulan.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menggunakan fungsi <strong>aov()<\/strong> di R untuk melakukan ANOVA satu arah ini:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set. <span style=\"color: #3366ff;\">seeds<\/span> (0)\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (program = rep(c(\"A\", \"B\", \"C\"), each= <span style=\"color: #008000;\">30<\/span> ),\n                 weight_loss = c(runif(30, 0, 3),\n                                 runif(30, 0, 5),\n                                 runif(30, 1, 7)))\n\n<span style=\"color: #008080;\">#fit one-way anova using aov()\n<\/span>fit &lt;- aov(weight_loss ~ program, data=df)\n\n<span style=\"color: #008080;\">#view results\n<\/span>summary(fit)\n\n            Df Sum Sq Mean Sq F value Pr(&gt;F)    \nprogram 2 98.93 49.46 30.83 7.55e-11 ***\nResiduals 87 139.57 1.60                     \n---\nSignificant. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Dari hasil model terlihat bahwa p-value program (0,0000000000755) kurang dari 0,05 yang berarti terdapat perbedaan rata-rata penurunan berat badan yang signifikan secara statistik antara ketiga program.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 2: Cara menggunakan anova() di R<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Misalkan kita ingin menggunakan <strong>jumlah jam belajar<\/strong> untuk memprediksi <strong>nilai ujian<\/strong> siswa di perguruan tinggi tertentu. Kita dapat memutuskan untuk mengadaptasi dua model regresi berikut:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Model lengkap:<\/strong> skor = \u03b2 <sub>0<\/sub> + B <sub>1<\/sub> (jam) + B <sub>2<\/sub> (jam) <sup>2<\/sup><\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Model tereduksi:<\/strong> skor = \u03b2 <sub>0<\/sub> + B <sub>1<\/sub> (jam)<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menggunakan fungsi <strong>anova()<\/strong> di R untuk melakukan uji kekurangan kecocokan guna menentukan apakah model lengkap memberikan kesesuaian yang jauh lebih baik daripada model tereduksi:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<span style=\"color: #000000;\">set. <span style=\"color: #3366ff;\">seeds<\/span> (1)\n\n<span style=\"color: #008080;\">#create dataset\n<\/span>df &lt;- data.frame(hours = runif(50, 5, 15), score=50)\ndf$score = df$score + df$hours^3\/150 + df$hours*runif(50, 1, 2)\n\n<span style=\"color: #008080;\">#view head of data\n<\/span>head(df)\n\n      hours score\n1 7.655087 64.30191\n2 8.721239 70.65430\n3 10.728534 73.66114\n4 14.082078 86.14630\n5 7.016819 59.81595\n6 13.983897 83.60510\n\n<span style=\"color: #008080;\">#fit full model\n<\/span>full &lt;- lm(score ~ poly(hours,2), data=df)\n\n<span style=\"color: #008080;\">#fit reduced model\n<\/span>reduced &lt;- lm(score ~ hours, data=df)\n\n<span style=\"color: #008080;\">#perform lack of fit test using anova()\n<\/span>anova(full, reduced)\n\nAnalysis of Variance Table\n\nModel 1: score ~ poly(hours, 2)\nModel 2: score ~ hours\n  Res.Df RSS Df Sum of Sq F Pr(&gt;F)   \n1 47 368.48                                \n2 48 451.22 -1 -82.744 10.554 0.002144 **\n---\nSignificant. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Karena nilai p pada tabel keluaran (0,002144) kurang dari 0,05, kita dapat menolak hipotesis nol dari pengujian tersebut dan menyimpulkan bahwa model lengkap secara statistik memberikan kesesuaian yang jauh lebih baik daripada model tereduksi.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Tutorial berikut menjelaskan cara melakukan tugas umum lainnya di R:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/anova-satu-arah-r\/\" target=\"_blank\" rel=\"noopener\">Bagaimana melakukan ANOVA satu arah di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/anova-ra-dua-arah\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan ANOVA dua arah di R<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/pengukuran-berulang-anova-di-sungai\/\" target=\"_blank\" rel=\"noopener\">Bagaimana melakukan pengukuran berulang ANOVA di R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fungsi aov() dan anova() di R tampak serupa, namun sebenarnya kami menggunakannya dalam dua skenario berbeda. Kami menggunakan aov() ketika kami ingin menyesuaikan model ANOVA dan menampilkan hasilnya dalam tabel ringkasan ANOVA. Kami menggunakan anova() ketika kami ingin membandingkan kesesuaian model regresi bertingkat untuk menentukan apakah model regresi dengan sekumpulan koefisien tertentu memberikan kesesuaian yang [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Kapan menggunakan aov() vs anova() di R \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan kapan menggunakan fungsi aov() vs anova() di R, termasuk contohnya.\" \/>\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\/id\/aov-vs-anova-di-sungai\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kapan menggunakan aov() vs anova() di R \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan kapan menggunakan fungsi aov() vs anova() di R, termasuk contohnya.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-17T10:17:33+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/\",\"url\":\"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/\",\"name\":\"Kapan menggunakan aov() vs anova() di R \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-17T10:17:33+00:00\",\"dateModified\":\"2023-07-17T10:17:33+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan kapan menggunakan fungsi aov() vs anova() di R, termasuk contohnya.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/aov-vs-anova-di-sungai\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Kapan menggunakan aov() versus anova() di r\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/id\/#website\",\"url\":\"https:\/\/statorials.org\/id\/\",\"name\":\"Statorials\",\"description\":\"Panduan anda untuk kompetensi statistik!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/id\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"id\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"id\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Halo, saya Benjamin, pensiunan profesor statistika yang menjadi guru Statorial yang berdedikasi. 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