{"id":1602,"date":"2023-07-25T16:59:31","date_gmt":"2023-07-25T16:59:31","guid":{"rendered":"https:\/\/statorials.org\/id\/hamparan-jejak-kepadatan-ggplot\/"},"modified":"2023-07-25T16:59:31","modified_gmt":"2023-07-25T16:59:31","slug":"hamparan-jejak-kepadatan-ggplot","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/hamparan-jejak-kepadatan-ggplot\/","title":{"rendered":"Cara melapisi plot kepadatan di ggplot2 (dengan contoh)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Plot kepadatan<\/strong> adalah cara yang berguna untuk memvisualisasikan distribusi nilai dalam kumpulan data.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Seringkali Anda mungkin ingin melihat plot kepadatan beberapa variabel sekaligus. Untungnya, hal ini mudah dilakukan menggunakan paket visualisasi data <a href=\"https:\/\/ggplot2.tidyverse.org\/\" target=\"_blank\" rel=\"noopener\">ggplot2<\/a> di R dengan sintaks berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>ggplot(data, <span style=\"color: #3366ff;\">aes<\/span> (x=value, fill=variable)) +\n  geom_density(alpha= <span style=\"color: #008000;\">.25<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Argumen <strong>alfa<\/strong> mengontrol opasitas setiap plot kepadatan. Penting untuk menetapkan nilai ini di bawah 1 sehingga Anda dapat melihat setiap plot kepadatan yang tumpang tindih.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Contoh langkah demi langkah berikut menunjukkan cara menggunakan sintaksis ini dalam praktiknya.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Langkah 1: Buat datanya<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Pertama, mari buat kumpulan data palsu dengan tiga variabel:<\/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> (1)\n\n<span style=\"color: #008080;\">#createdata\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1=rnorm(1000, mean=0, sd=1),\n                 var2=rnorm(1000, mean=0, sd=3),\n                 var3=rnorm(1000, mean=3, sd=2))\n\n<span style=\"color: #008080;\">#view first six rows of data\n<\/span>head(df)\n\n        var1 var2 var3\n1 -0.6264538 3.4048953 1.2277008\n2 0.1836433 3.3357955 -0.8445098\n3 -0.8356286 -2.6123329 6.2394015\n4 1.5952808 0.6321948 4.0385398\n5 0.3295078 0.2081869 2.8883001\n6 -0.8204684 -4.9879466 4.3928352<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Langkah 2: Konversi data dari lebar ke panjang<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Selanjutnya, kita perlu mengonversi data dari format lebar ke format panjang agar kompatibel dengan ggplot2:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #000000;\"><span style=\"color: #993300;\">library<\/span> (reshape)<\/span>\n<\/span>\n<span style=\"color: #008080;\">#convert from wide format to long format\n<span style=\"color: #000000;\">data &lt;- melt(df)\n\n<span style=\"color: #008080;\">#view first six rows\n<\/span>head(data)\n\n  variable value\n1 var1 -0.6264538\n2 var1 0.1836433\n3 var1 -0.8356286\n4 var1 1.5952808\n5 var1 0.3295078\n6 var1 -0.8204684<\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Langkah 3: Buat Plot Kepadatan yang Tumpang Tindih<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Terakhir, kita dapat membuat plot kepadatan yang dilapis:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #993300;\">library<\/span> (ggplot2)\n<\/span>\n<span style=\"color: #008080;\">#create overlaying density plots\n<span style=\"color: #000000;\">ggplot(data, <span style=\"color: #3366ff;\">aes<\/span> (x=value, fill=variable)) +\n  geom_density(alpha= <span style=\"color: #008000;\">.25<\/span> )<\/span><\/span><\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-15919 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/densiteggplot1.png\" alt=\"Melapisi plot kepadatan di ggplot2\" width=\"424\" height=\"429\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Jangan ragu untuk menyesuaikan nilai <strong>alpha<\/strong> untuk membuat plot kepadatan lebih atau kurang transparan.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Misalnya, seperti inilah plotnya jika kita meningkatkan nilai alpha:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #993300;\">library<\/span> (ggplot2)\n<\/span>\n<span style=\"color: #008080;\">#create overlaying density plots\n<span style=\"color: #000000;\">ggplot(data, <span style=\"color: #3366ff;\">aes<\/span> (x=value, fill=variable)) +\n  geom_density(alpha= <span style=\"color: #008000;\">.7<\/span> )<\/span><\/span><\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-15920 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/densiteggplot2.png\" alt=\"\" width=\"414\" height=\"410\" srcset=\"\" sizes=\"\"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Sumber daya tambahan<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/id\/bagan-gantt-r-ggplot2\/\" target=\"_blank\" rel=\"noopener\">Cara Membuat Gantt Chart di R Menggunakan ggplot2<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/plot-kotak-yang-dikelompokkan-r-ggplot2\/\" target=\"_blank\" rel=\"noopener\">Cara membuat plot kotak yang dikelompokkan di R menggunakan ggplot2<\/a><br \/> <a href=\"https:\/\/statorials.org\/id\/plot-berdampingan-ggplot2\/\">Cara membuat plot berdampingan di R menggunakan ggplot2<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Plot kepadatan adalah cara yang berguna untuk memvisualisasikan distribusi nilai dalam kumpulan data. Seringkali Anda mungkin ingin melihat plot kepadatan beberapa variabel sekaligus. Untungnya, hal ini mudah dilakukan menggunakan paket visualisasi data ggplot2 di R dengan sintaks berikut: ggplot(data, aes (x=value, fill=variable)) + geom_density(alpha= .25 ) Argumen alfa mengontrol opasitas setiap plot kepadatan. Penting untuk [&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 Melapisi Plot Kepadatan di ggplot2 (dengan Contoh)<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara melapisi beberapa plot kepadatan di ggplot2, termasuk beberapa 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\/hamparan-jejak-kepadatan-ggplot\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Melapisi Plot Kepadatan di ggplot2 (dengan Contoh)\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara melapisi beberapa plot kepadatan di ggplot2, termasuk beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/hamparan-jejak-kepadatan-ggplot\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T16:59:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/densiteggplot1.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\/hamparan-jejak-kepadatan-ggplot\/\",\"url\":\"https:\/\/statorials.org\/id\/hamparan-jejak-kepadatan-ggplot\/\",\"name\":\"Cara Melapisi Plot Kepadatan di ggplot2 (dengan Contoh)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-25T16:59:31+00:00\",\"dateModified\":\"2023-07-25T16:59:31+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara melapisi beberapa plot kepadatan di ggplot2, termasuk beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/hamparan-jejak-kepadatan-ggplot\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/hamparan-jejak-kepadatan-ggplot\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/hamparan-jejak-kepadatan-ggplot\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara melapisi plot kepadatan di ggplot2 (dengan 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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