{"id":3980,"date":"2023-07-14T09:17:12","date_gmt":"2023-07-14T09:17:12","guid":{"rendered":"https:\/\/statorials.org\/id\/alfa-geom_point-ggplot2\/"},"modified":"2023-07-14T09:17:12","modified_gmt":"2023-07-14T09:17:12","slug":"alfa-geom_point-ggplot2","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/alfa-geom_point-ggplot2\/","title":{"rendered":"Cara menggunakan alfa dengan geom_point() di ggplot2"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Anda dapat menggunakan argumen <strong>alpha<\/strong> dalam fungsi <strong>geom_point()<\/strong> di ggplot2 untuk mengubah transparansi titik dalam plot.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Argumen ini menggunakan sintaks dasar berikut:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>ggplot(df, aes(x=x, y=y)) +\n  geom_point(alpha= <span style=\"color: #008000;\">1<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Nilai <strong>alpha<\/strong> bisa antara 0 dan 1 dimana:<\/span><\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>0<\/strong> sepenuhnya transparan<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>1<\/strong> benar-benar padat<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Nilai default untuk <strong>alpha<\/strong> adalah <strong>1<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Dengan mengatur <strong>alpha<\/strong> ke nilai kurang dari 1, memvisualisasikan titik-titik yang tumpang tindih dalam sebuah plot menjadi lebih mudah, yang sangat berguna ketika memplot titik-titik dari kumpulan data yang besar.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Contoh berikut menunjukkan cara menggunakan argumen <strong>alpha<\/strong> dalam praktiknya dengan bingkai data berikut yang berisi 5000 baris:<\/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;\">#create data frame with 5000 rows\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (x=runif(n=5000, min=1, max=100))\n\ndf$y = df$x*3 + runif(5000)*df$x^2\n\n<span style=\"color: #008080;\">#view head of data frame\n<\/span>head(df)\n\n         xy\n1 27.28536 108.2851\n2 37.84027 622.8478\n3 57.71248 1002.0662\n4 90.91257 7539.2476\n5 20.96651 202.6813\n6 89.94058 2867.4643\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Terkait:<\/strong> <a href=\"https:\/\/statorials.org\/id\/runif-di-sungai\/\" target=\"_blank\" rel=\"noopener\">Cara menggunakan fungsi runif di R<\/a><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 1: Menggunakan alpha = 1 di geom_point()<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara membuat scatterplot di ggplot2 menggunakan nilai default 1 untuk argumen <strong>alpha<\/strong> :<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (ggplot2)\n<\/span>\n#create scatter plot with default alpha value\n<span style=\"color: #000000;\">ggplot(df, aes(x=x, y=y)) +\n  geom_point()\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31885 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/alpha3.jpg\" alt=\"\" width=\"587\" height=\"428\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Perhatikan bahwa titik plot benar-benar solid, yang sesuai dengan nilai <strong>alfa<\/strong> 1.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 2: Menggunakan alpha = 0 di geom_point()<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara membuat scatterplot di ggplot2 menggunakan nilai 0 untuk argumen <strong>alpha<\/strong> :<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (ggplot2)\n<\/span>\n#create scatter plot with alpha value of 0\n<span style=\"color: #000000;\">ggplot(df, aes(x=x, y=y)) +\n  geom_point(alpha= <span style=\"color: #008000;\">0<\/span> )\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31886 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/alpha4.jpg\" alt=\"\" width=\"586\" height=\"430\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Semua titik di jalur sepenuhnya transparan, yang sesuai dengan nilai <strong>alfa<\/strong> 0.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Contoh 3: Menggunakan alpha = 0,1 di geom_point()<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Kode berikut menunjukkan cara membuat scatterplot di ggplot2 menggunakan nilai 0,1 untuk argumen <strong>alpha<\/strong> :<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (ggplot2)\n<\/span>\n#create scatter plot with alpha value of 0.1\n<span style=\"color: #000000;\">ggplot(df, aes(x=x, y=y)) +\n  geom_point(alpha= <span style=\"color: #008000;\">0.1<\/span> )\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31887 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/alpha5.jpg\" alt=\"\" width=\"606\" height=\"445\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Dengan menyetel <strong>alfa<\/strong> ke 0,1, titik-titik tersebut memiliki tingkat transparansi yang memungkinkan kita melihat di mana titik-titik tersebut paling banyak tumpang tindih pada plot.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Jangan ragu untuk bermain-main dengan nilai <strong>alpha<\/strong> dalam fungsi <strong>geom_point()<\/strong> untuk mendapatkan tingkat transparansi yang membuat plot Anda lebih mudah dibaca.<\/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 ggplot2:<\/span><\/p>\n<p> Cara menghapus label sumbu di ggplot2<br \/> <a href=\"https:\/\/statorials.org\/id\/hapus-legenda-ggplot2\/\" target=\"_blank\" rel=\"noopener\">Cara menghapus legenda di ggplot2<\/a><br \/> Cara menghapus garis kisi di ggplot2<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Anda dapat menggunakan argumen alpha dalam fungsi geom_point() di ggplot2 untuk mengubah transparansi titik dalam plot. Argumen ini menggunakan sintaks dasar berikut: ggplot(df, aes(x=x, y=y)) + geom_point(alpha= 1 ) Nilai alpha bisa antara 0 dan 1 dimana: 0 sepenuhnya transparan 1 benar-benar padat Nilai default untuk alpha adalah 1 . Dengan mengatur alpha ke nilai [&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 menggunakan alpha dengan geom_point() di ggplot2 \u2013 Statologi<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menggunakan argumen alpha dalam fungsi geom_point() di ggplot2, dengan 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\/alfa-geom_point-ggplot2\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara menggunakan alpha dengan geom_point() di ggplot2 \u2013 Statologi\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menggunakan argumen alpha dalam fungsi geom_point() di ggplot2, dengan beberapa contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/alfa-geom_point-ggplot2\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-14T09:17:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/alpha3.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\/alfa-geom_point-ggplot2\/\",\"url\":\"https:\/\/statorials.org\/id\/alfa-geom_point-ggplot2\/\",\"name\":\"Cara menggunakan alpha dengan geom_point() di ggplot2 \u2013 Statologi\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-14T09:17:12+00:00\",\"dateModified\":\"2023-07-14T09:17:12+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menggunakan argumen alpha dalam fungsi geom_point() di ggplot2, dengan beberapa contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/alfa-geom_point-ggplot2\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/alfa-geom_point-ggplot2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/alfa-geom_point-ggplot2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menggunakan alfa dengan geom_point() di ggplot2\"}]},{\"@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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