{"id":3891,"date":"2023-07-14T22:45:13","date_gmt":"2023-07-14T22:45:13","guid":{"rendered":"https:\/\/statorials.org\/id\/regresi-polinomial-di-sas\/"},"modified":"2023-07-14T22:45:13","modified_gmt":"2023-07-14T22:45:13","slug":"regresi-polinomial-di-sas","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/regresi-polinomial-di-sas\/","title":{"rendered":"Cara melakukan regresi polinomial di sas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Jenis analisis regresi yang paling umum adalah <a href=\"https:\/\/statorials.org\/id\/regresi-linier-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">regresi linier sederhana<\/a> , digunakan ketika variabel prediktor dan <a href=\"https:\/\/statorials.org\/id\/variabel-tanggapan-penjelas\/\" target=\"_blank\" rel=\"noopener\">variabel respons<\/a> mempunyai hubungan linier.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Namun terkadang hubungan antara variabel prediktor dan variabel respon bersifat nonlinier.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Dalam kasus ini, masuk akal untuk menggunakan <strong>regresi polinomial<\/strong> , yang dapat menjelaskan hubungan nonlinier antar variabel.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara melakukan regresi polinomial di SAS.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh: Regresi Polinomial di SAS<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Anggaplah kita memiliki kumpulan data berikut di SAS:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\">data<\/span> my_data;\n    <span style=\"color: #3366ff;\">input<\/span> xy;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\n2 18\n4 14\n4 16\n5 17\n6 18\n7 23\n7 25\n8 28\n9 32\n12 29\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31346 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/polysas1.jpg\" alt=\"\" width=\"118\" height=\"292\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Sekarang misalkan kita membuat scatterplot untuk memvisualisasikan hubungan antara variabel x dan y dalam dataset:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*create scatter plot of x vs. y*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">proc sgplot<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;\n    scatter <span style=\"color: #3366ff;\">x<\/span> =x <span style=\"color: #3366ff;\">y<\/span> =y;\n<span style=\"color: #800080;\">run<\/span> ;<\/span><\/span><\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31347 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/polysas2.jpg\" alt=\"\" width=\"592\" height=\"440\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Dari grafik terlihat bahwa hubungan antara x dan y berbentuk kubik.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Jadi, kita dapat menentukan dua variabel prediktor baru dalam kumpulan data kita (x <sup>2<\/sup> dan x <sup>3<\/sup> ), lalu menggunakan <strong>proc reg<\/strong> agar sesuai dengan model regresi polinomial menggunakan variabel prediktor berikut:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*create dataset with new predictor variables*\/\n<\/span><span style=\"color: #800080;\">data<\/span> my_data;\n    <span style=\"color: #3366ff;\">input<\/span> xy;\n    x2 = x** <span style=\"color: #008000;\">2<\/span> ;\n    x3 = x** <span style=\"color: #008000;\">3<\/span> ;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\n2 18\n4 14\n4 16\n5 17\n6 18\n7 23\n7 25\n8 28\n9 32\n12 29\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*fit polynomial regression model*\/\n<\/span><span style=\"color: #800080;\">proc reg<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;\n    <span style=\"color: #3366ff;\">model<\/span> y = x x2 x3;\n<span style=\"color: #800080;\">run<\/span> ;\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31349 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/polysas3.jpg\" alt=\"\" width=\"413\" height=\"542\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"c\/*create scatter plot*\/ proc sgplot data=my_data; scatter x=x y=y; run;olor: #000000;\">Dari tabel <strong>Estimasi Parameter<\/strong> , kita dapat menemukan estimasi koefisien dan menulis persamaan regresi polinomial yang sesuai sebagai:<\/span><\/p>\n<p> <span style=\"color: #000000;\">kamu = 37,213 \u2013 14,238x + 2,648x <sup>2<\/sup> \u2013 0,126x <sup>3<\/sup><\/span><\/p>\n<p> <span style=\"color: #000000;\">Persamaan ini dapat digunakan untuk mencari nilai yang diharapkan dari variabel respon dengan adanya nilai tertentu dari variabel prediktor.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Misalnya, jika xa bernilai 4, maka y seharusnya bernilai 14,565:<\/span><\/p>\n<p> <span style=\"color: #000000;\">kamu = 37,213 \u2013 14,238(4) + 2,648(4) <sup>2<\/sup> \u2013 0,126(4) <sup>3<\/sup> = <strong>14,565<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Kita juga dapat melihat bahwa model regresi polinomial memiliki nilai R-kuadrat yang disesuaikan sebesar <strong>0,9636<\/strong> , yang sangat mendekati satu dan menunjukkan bahwa model tersebut berfungsi dengan baik dalam menyesuaikan kumpulan data.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Terkait:<\/strong> <a href=\"https:\/\/statorials.org\/id\/interpretasi-r-persegi-yang-disesuaikan\/\" target=\"_blank\" rel=\"noopener\">Cara Menafsirkan R-Squared yang Disesuaikan (Dengan Contoh)<\/a><\/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 SAS:<\/span><\/p>\n<p><a href=\"https:\/\/statorials.org\/id\/regresi-linier-sederhana-di-sas\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan regresi linier sederhana di SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/regresi-linier-berganda-di-sas\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan regresi linier berganda di SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/regresi-kuantil-di-sas\/\" target=\"_blank\" rel=\"noopener\">Cara melakukan regresi kuantil di SAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jenis analisis regresi yang paling umum adalah regresi linier sederhana , digunakan ketika variabel prediktor dan variabel respons mempunyai hubungan linier. Namun terkadang hubungan antara variabel prediktor dan variabel respon bersifat nonlinier. Dalam kasus ini, masuk akal untuk menggunakan regresi polinomial , yang dapat menjelaskan hubungan nonlinier antar variabel. Contoh berikut menunjukkan cara melakukan regresi [&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>Cara melakukan regresi polinomial di SAS - Statologi<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara melakukan regresi polinomial di SAS, dengan sebuah contoh.\" \/>\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\/regresi-polinomial-di-sas\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara melakukan regresi polinomial di SAS - Statologi\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara melakukan regresi polinomial di SAS, dengan sebuah contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/regresi-polinomial-di-sas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-14T22:45:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/polysas1.jpg\" \/>\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\/regresi-polinomial-di-sas\/\",\"url\":\"https:\/\/statorials.org\/id\/regresi-polinomial-di-sas\/\",\"name\":\"Cara melakukan regresi polinomial di SAS - Statologi\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-14T22:45:13+00:00\",\"dateModified\":\"2023-07-14T22:45:13+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara melakukan regresi polinomial di SAS, dengan sebuah contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/regresi-polinomial-di-sas\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/regresi-polinomial-di-sas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/regresi-polinomial-di-sas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara melakukan regresi polinomial di sas\"}]},{\"@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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