{"id":2059,"date":"2023-07-23T21:37:52","date_gmt":"2023-07-23T21:37:52","guid":{"rendered":"https:\/\/statorials.org\/id\/normalisasi-skor-z\/"},"modified":"2023-07-23T21:37:52","modified_gmt":"2023-07-23T21:37:52","slug":"normalisasi-skor-z","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/normalisasi-skor-z\/","title":{"rendered":"Normalisasi skor z: definisi &amp; contoh"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Normalisasi skor Z<\/strong> mengacu pada proses normalisasi setiap nilai dalam kumpulan data sedemikian rupa sehingga rata-rata semua nilai adalah 0 dan simpangan bakunya adalah 1.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kami menggunakan rumus berikut untuk melakukan normalisasi skor-z pada setiap nilai dalam kumpulan data:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nilai baru = (x \u2013 \u03bc) \/ \u03c3<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x<\/strong> : Nilai asli<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\u03bc<\/strong> : Rata-rata data<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\u03c3<\/strong> : Standar deviasi data<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara melakukan normalisasi skor-z pada kumpulan data dalam praktiknya.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh: Melakukan Normalisasi Z-Score<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Misalkan kita memiliki kumpulan data berikut:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-19202 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/zscorenorm1.png\" alt=\"\" width=\"80\" height=\"515\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Dengan menggunakan kalkulator, kita dapat melihat bahwa rata-rata kumpulan data adalah <strong>21,2<\/strong> dan simpangan bakunya adalah <strong>29,8<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Untuk melakukan normalisasi z-score ke nilai pertama pada dataset, kita dapat menggunakan rumus berikut:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Nilai baru = (x \u2013 \u03bc) \/ \u03c3<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai baru = (3 \u2013 21.2) \/ 29.8<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai baru = -0,61<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Kita dapat menggunakan rumus ini untuk melakukan normalisasi z-score pada setiap nilai dalam dataset:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-19203 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/zscorenorm2.png\" alt=\"\" width=\"211\" height=\"534\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Rata-rata dari nilai yang dinormalisasi adalah <strong>0<\/strong> dan simpangan baku dari nilai yang dinormalisasi adalah <strong>1<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Nilai yang dinormalisasi mewakili jumlah standar deviasi antara nilai asli dan mean.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Misalnya:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Nilai pertama dalam kumpulan data adalah <strong>0,61<\/strong> standar deviasi di bawah rata-rata.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai kedua dalam kumpulan data adalah <strong>0,54<\/strong> standar deviasi di bawah rata-rata.<\/span><\/li>\n<li> <span style=\"color: #000000;\">\u2026<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai terakhir dalam kumpulan data adalah <strong>3,79<\/strong> standar deviasi di atas rata-rata.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Keuntungan melakukan normalisasi jenis ini adalah outlier yang terlihat jelas dalam kumpulan data (134) telah diubah sedemikian rupa sehingga tidak lagi menjadi outlier yang masif.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Jika kita kemudian menggunakan kumpulan data ini untuk menyesuaikan beberapa jenis model pembelajaran mesin , outlier tidak lagi memiliki pengaruh yang besar terhadap kesesuaian model.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Tutorial berikut memberikan informasi tambahan tentang berbagai teknik normalisasi:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/id\/standardisasi-vs-normalisasi\/\" target=\"_blank\" rel=\"noopener\">Standardisasi atau normalisasi: apa bedanya?<\/a><br \/><a href=\"https:\/\/statorials.org\/id\/menormalkan-data-antara-0-dan-1\/\" target=\"_blank\" rel=\"noopener\">Cara menormalkan data antara 0 dan 1<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/menormalkan-data-antara-0-dan-100\/\" target=\"_blank\" rel=\"noopener\">Cara menormalkan data antara 0 dan 100<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Normalisasi skor Z mengacu pada proses normalisasi setiap nilai dalam kumpulan data sedemikian rupa sehingga rata-rata semua nilai adalah 0 dan simpangan bakunya adalah 1. Kami menggunakan rumus berikut untuk melakukan normalisasi skor-z pada setiap nilai dalam kumpulan data: Nilai baru = (x \u2013 \u03bc) \/ \u03c3 Emas: x : Nilai asli \u03bc : Rata-rata [&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>Normalisasi skor Z: definisi dan contoh - Statorial<\/title>\n<meta name=\"description\" content=\"Tutorial ini memberikan penjelasan tentang normalisasi z-score, termasuk definisi formal dan 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\/normalisasi-skor-z\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Normalisasi skor Z: definisi dan contoh - Statorial\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini memberikan penjelasan tentang normalisasi z-score, termasuk definisi formal dan contohnya.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/normalisasi-skor-z\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-23T21:37:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/zscorenorm1.png\" \/>\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=\"1 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/normalisasi-skor-z\/\",\"url\":\"https:\/\/statorials.org\/id\/normalisasi-skor-z\/\",\"name\":\"Normalisasi skor Z: definisi dan contoh - Statorial\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-23T21:37:52+00:00\",\"dateModified\":\"2023-07-23T21:37:52+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini memberikan penjelasan tentang normalisasi z-score, termasuk definisi formal dan contohnya.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/normalisasi-skor-z\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/normalisasi-skor-z\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/normalisasi-skor-z\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Normalisasi skor z: definisi &amp; contoh\"}]},{\"@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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