{"id":913,"date":"2023-07-28T08:19:55","date_gmt":"2023-07-28T08:19:55","guid":{"rendered":"https:\/\/statorials.org\/id\/skor-zr\/"},"modified":"2023-07-28T08:19:55","modified_gmt":"2023-07-28T08:19:55","slug":"skor-zr","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/skor-zr\/","title":{"rendered":"Cara menghitung skor z di r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Dalam statistik, <strong>skor-z<\/strong> memberi tahu kita berapa banyak standar deviasi suatu nilai dari mean. Kami menggunakan rumus berikut untuk menghitung skor-z:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>z<\/strong> = (X \u2013 \u03bc) \/ \u03c3<\/span><\/p>\n<p> <span style=\"color: #000000;\">Emas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">X adalah nilai data mentah tunggal<\/span><\/li>\n<li> <span style=\"color: #000000;\">\u03bc adalah rata-rata populasi<\/span><\/li>\n<li> <span style=\"color: #000000;\">\u03c3 adalah simpangan baku populasi<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Tutorial ini menjelaskan cara menghitung skor-z untuk nilai data mentah di R.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 1: Menemukan Skor Z untuk Vektor Tunggal<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara mencari skor-z untuk setiap nilai data mentah dalam vektor:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create vector of data<\/span>\ndata &lt;- c(6, 7, 7, 12, 13, 13, 15, 16, 19, 22)\n\n<span style=\"color: #008080;\">#find z-score for each data value<\/span> \nz_scores &lt;- (data-mean(data))\/sd(data)\n\n<span style=\"color: #008080;\">#display z-scores<\/span>\nz_scores\n\n[1] -1.3228757 -1.1338934 -1.1338934 -0.1889822 0.0000000 0.0000000\n[7] 0.3779645 0.5669467 1.1338934 1.7008401\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Setiap skor-z memberi tahu kita berapa banyak deviasi standar suatu nilai individu dari mean. Misalnya:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Nilai data mentah pertama &#8220;6&#8221; adalah <strong>1,323<\/strong> standar deviasi <em>di bawah<\/em> rata-rata.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai data mentah kelima, &#8220;13&#8221;, adalah <strong>0<\/strong> standar deviasi dari mean, yaitu sama dengan mean.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai data mentah terbaru &#8220;22&#8221; adalah <strong>1,701<\/strong> standar deviasi <em>di atas<\/em> rata-rata.<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 2: Temukan Z-Score untuk Satu Kolom di DataFrame<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menemukan skor-z untuk setiap nilai data mentah dalam satu kolom kerangka data:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create dataframe<\/span>\ndf &lt;- data.frame(assists = c(4, 4, 6, 7, 9, 13),\n                 points = c(24, 29, 13, 15, 19, 22),\n                 rebounds = c(5, 5, 7, 8, 14, 15))\n\n<span style=\"color: #008080;\">#find z-score for each data value in the 'points' column\n<\/span>z_scores &lt;- (df$points-mean(df$points))\/sd(df$points)\n\n<span style=\"color: #008080;\">#display z-scores<\/span>\nz_scores\n\n[1] 0.6191904 1.4635409 -1.2383807 -0.9006405 -0.2251601 0.2814502\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Setiap skor-z memberi tahu kita berapa banyak deviasi standar suatu nilai individu dari mean. Misalnya:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Nilai data mentah pertama &#8220;24&#8221; adalah <strong>0,619<\/strong> standar deviasi <em>di atas<\/em> rata-rata.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai data mentah kedua, &#8220;29&#8221;, adalah <strong>1,464<\/strong> standar deviasi <em>di atas<\/em> rata-rata.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai data mentah ketiga, &#8220;13&#8221;, adalah <strong>1,238<\/strong> standar deviasi <em>di bawah<\/em> rata-rata.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Dan seterusnya.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Contoh 3: Temukan Z-Score untuk Setiap Kolom di DataFrame<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara menemukan skor-z untuk setiap nilai data mentah di setiap kolom bingkai data menggunakan <a href=\"https:\/\/statorials.org\/id\/panduan-untuk-menerapkan-lapply-sapply-dan-tapply-di-r\/\" target=\"_blank\" rel=\"noopener\">fungsi sapply()<\/a> .<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create dataframe<\/span>\ndf &lt;- data.frame(assists = c(4, 4, 6, 7, 9, 13),\n                 points = c(24, 29, 13, 15, 19, 22),\n                 rebounds = c(5, 5, 7, 8, 14, 15))\n\n<span style=\"color: #008080;\">#find z-scores of each column<\/span>\nsapply(df, function(df) (df-mean(df))\/sd(df))\n\n         assists points rebounds\n[1,] -0.92315712 0.6191904 -0.9035079\n[2,] -0.92315712 1.4635409 -0.9035079\n[3,] -0.34011052 -1.2383807 -0.4517540\n[4,] -0.04858722 -0.9006405 -0.2258770\n[5,] 0.53445939 -0.2251601 1.1293849\n[6,] 1.70055260 0.2814502 1.3552619<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Skor-z untuk setiap nilai individual ditampilkan relatif terhadap kolom tempatnya berada. Misalnya:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Nilai pertama \u201c4\u201d pada kolom pertama adalah <strong>0,923<\/strong> standar deviasi <i>di bawah<\/i> nilai rata-rata kolomnya.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai pertama \u201c24\u201d pada kolom kedua adalah <strong>0,619<\/strong> standar deviasi <i>di atas<\/i> nilai rata-rata kolomnya.<\/span><\/li>\n<li> <span style=\"color: #000000;\">Nilai pertama \u201c9\u201d pada kolom ketiga adalah <strong>0,904<\/strong> standar deviasi <em>lebih rendah<\/em> dari nilai rata-rata kolomnya.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Dan seterusnya.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><em>Anda dapat menemukan lebih banyak tutorial R di sini .<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dalam statistik, skor-z memberi tahu kita berapa banyak standar deviasi suatu nilai dari mean. Kami menggunakan rumus berikut untuk menghitung skor-z: z = (X \u2013 \u03bc) \/ \u03c3 Emas: X adalah nilai data mentah tunggal \u03bc adalah rata-rata populasi \u03c3 adalah simpangan baku populasi Tutorial ini menjelaskan cara menghitung skor-z untuk nilai data mentah di [&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 menghitung skor Z di R - Statorials<\/title>\n<meta name=\"description\" content=\"Penjelasan sederhana cara menghitung z-score 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\/skor-zr\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menghitung skor Z di R - Statorials\" \/>\n<meta property=\"og:description\" content=\"Penjelasan sederhana cara menghitung z-score di R, termasuk contohnya.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/skor-zr\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T08:19:55+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\/skor-zr\/\",\"url\":\"https:\/\/statorials.org\/id\/skor-zr\/\",\"name\":\"Cara menghitung skor Z di R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-28T08:19:55+00:00\",\"dateModified\":\"2023-07-28T08:19:55+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Penjelasan sederhana cara menghitung z-score di R, termasuk contohnya.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/skor-zr\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/skor-zr\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/skor-zr\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menghitung skor z 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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