{"id":2535,"date":"2024-09-24T21:21:35","date_gmt":"2024-09-24T12:21:35","guid":{"rendered":"https:\/\/secondlife.lol\/?p=2535"},"modified":"2024-09-24T21:26:24","modified_gmt":"2024-09-24T12:26:24","slug":"r-anaalysys-example-movies-ratings-data","status":"publish","type":"post","link":"https:\/\/secondlife.lol\/ja\/r-anaalysys-example-movies-ratings-data\/","title":{"rendered":"R\u30c7\u30fc\u30bf\u5206\u6790\u4f8b\uff1a\u6620\u753b\u8a55\u4fa1\u30c7\u30fc\u30bf\u304b\u3089\u5b66\u3076\u5b9f\u8df5\u7684\u306a\u5206\u6790\u65b9\u6cd5"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u597d\u304d\u306a\u6620\u753b\u3092\u89b3\u305f\u5f8c\u3001\u8a55\u4fa1\u3092\u4ed8\u3051\u305f\u308a\u3001\u30ec\u30d3\u30e5\u30fc\u3092\u66f8\u3044\u305f\u7d4c\u9a13\u304c\u3042\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f \u3042\u306a\u305f\u304c\u6b8b\u3057\u305f\u8a55\u4fa1\u3084\u30ec\u30d3\u30e5\u30fc\u306f\u3001\u5358\u306a\u308b\u610f\u898b\u306e\u8868\u660e\u3067\u306f\u306a\u304f\u3001\u305d\u308c\u81ea\u4f53\u304c\u591a\u304f\u306e\u30a4\u30f3\u30b5\u30a4\u30c8\u3092\u63d0\u4f9b\u3067\u304d\u308b\u30c7\u30fc\u30bf\u306b\u306a\u308a\u307e\u3059\u3002\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f <strong>R\u306e\u30c7\u30fc\u30bf\u5206\u6790\u4f8b\u3067\u6620\u753b\u8a55\u4fa1\u30c7\u30fc\u30bf\u3092\u5206\u6790<\/strong>\u3057\u306a\u304c\u3089\u3001\u5b9f\u6226\u3067\u3069\u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u3092\u6271\u3046\u304b <strong>\u6d1e\u5bdf\u3092\u5f15\u304d\u51fa\u3059<\/strong>\u91cd\u8981\u306a\u60c5\u5831\u304c\u6e80\u8f09\u306a\u306e\u3067\u3001\u6700\u5f8c\u307e\u3067\u96c6\u4e2d\u3057\u3066\u8aad\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n\n\n<style>.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap{padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title-wrap{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title-wrap{color:var(--global-palette2, #2B6CB0);}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title{color:var(--global-palette2, #2B6CB0);font-size:28px;font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap .kb-table-of-content-list{color:var(--global-palette1, #3182CE);line-height:2em;font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap .kb-table-of-content-list .kb-table-of-contents__entry:hover{color:var(--global-palette6, #718096);}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}}@media all and (max-width: 1024px){.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title{font-size:28px;}}@media all and (max-width: 767px){.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-content-wrap{border-top:3px solid var(--global-palette2, #2B6CB0);border-right:3px solid var(--global-palette2, #2B6CB0);border-bottom:3px solid var(--global-palette2, #2B6CB0);border-left:3px solid var(--global-palette2, #2B6CB0);}.kb-table-of-content-nav.kb-table-of-content-id83_5f28a6-34 .kb-table-of-contents-title{font-size:28px;}}<\/style>\n\n\n<h2 class=\"wp-block-heading\">\u6620\u753b\u8a55\u4fa1\u30c7\u30fc\u30bf\u5206\u6790\u306e\u91cd\u8981\u6027<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6620\u753b\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u306f\u3001\u5358\u306b\u9451\u8cde\u5f8c\u306b\u6b8b\u3059\u611f\u60f3\u6587\u306b\u3068\u3069\u307e\u308a\u307e\u305b\u3093\u3002 \u6620\u753b\u696d\u754c\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u3092\u3082\u3068\u306b\u5e02\u5834\u5206\u6790\u3092\u884c\u3044\u3001\u3069\u306e\u6620\u753b\u304c\u3088\u308a\u4eba\u6c17\u304c\u3042\u308b\u306e\u304b\u3001\u3069\u306e\u30b8\u30e3\u30f3\u30eb\u304c\u611b\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u306a\u3069\u3092\u4e88\u6e2c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u4e88\u6e2c\u306f\u3001\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u6226\u7565\u3092\u7acb\u3066\u308b\u306e\u306b\u3082\u5927\u3044\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u56de\u306eR\u30c7\u30fc\u30bf\u5206\u6790\u4f8b\u3067\u306f\u3001MovieLens\u3068\u3044\u3046\u6620\u753b\u8a55\u4fa1\u30c7\u30fc\u30bf\u3092\u6d3b\u7528\u3057\u3001\u6620\u753b\u306e\u8a55\u4fa1\u5206\u5e03\u3001\u30b8\u30e3\u30f3\u30eb\u5225\u306e\u8a55\u4fa1\u5e73\u5747\u3001\u305d\u3057\u3066\u4eba\u6c17\u306e\u3042\u308b\u6620\u753b\u3092\u5206\u6790\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002 \u3053\u306e\u904e\u7a0b\u3092\u901a\u3058\u3066\u3001\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u8fbc\u307f\u304b\u3089\u53ef\u8996\u5316\u307e\u3067\u306e\u5168\u4f53\u7684\u306a\u5206\u6790\u306e\u6d41\u308c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.\u30c7\u30fc\u30bf\u306e\u30ed\u30fc\u30c9\u3068\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6620\u753b\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u3092\u5206\u6790\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u3053\u3053\u3067\u306f <strong><a href=\"https:\/\/www.kaggle.com\/datasets\/abhikjha\/movielens-100k\/data\" target=\"_blank\" rel=\"noreferrer noopener\">MovieLens\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8<\/a><\/strong>\u3092\u4f7f\u7528\u3057\u3001\u3053\u308c\u306f\u7d04\u6570\u767e\u4e07\u4ef6\u306e\u6620\u753b\u8a55\u4fa1\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u5206\u6790\u306e\u826f\u3044\u4f8b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">R\u3067\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># MovieLens\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\ninstall.packages(\"data.table\")\nlibrary(data.table)\n\n# # #\u306e\u30ed\u30fc\u30ab\u30eb\u30d5\u30a1\u30a4\u30eb\u30d1\u30b9\u306b\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002\nratings &lt;- fread(&quot;C:\/Users\/user\/user\/Documents\/Project_R\/data\/ml-latest-small\/ratings.csv&quot;)\n\n#\u30c7\u30fc\u30bf\u95b2\u89a7\nstr(ratings)\nsummary(ratings)\nhead(ratings)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u306e\u30b3\u30fc\u30c9\u3067MovieLens\u30c7\u30fc\u30bf\u3092R\u306b\u8aad\u307f\u8fbc\u3093\u3060\u5f8c\u3001\u30c7\u30fc\u30bf\u306e\u69cb\u9020\u3068\u57fa\u790e\u7d71\u8a08\u91cf\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306f <code>userId<\/code>, <code>movieId<\/code>, <code>\u8a55\u4fa1<\/code>, <code>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7<\/code> \u306a\u3069\u306e\u5217\u3067\u69cb\u6210\u3055\u308c\u3066\u304a\u308a\u3001\u5408\u8a08\u6570\u5343\u4e07\u4ef6\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<style>.kb-image2535_5c1626-5a .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image2535_5c1626-5a img.kb-img, .kb-image2535_5c1626-5a .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image2535_5c1626-5a\"><figure class=\"aligncenter size-medium_large\"><img decoding=\"async\" width=\"768\" height=\"349\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-12-768x349.jpg\" alt=\"R \ub370\uc774\ud130\ubd84\uc11d \uc608\uc81c - \uc601\ud654 \ud3c4\uc810 \ub370\uc774\ud130 \ubd84\uc11d - \ub370\uc774\ud130 \ud0d0\uc0c9 \" class=\"kb-img wp-image-2536\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-12-768x349.jpg 768w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-12-300x136.jpg 300w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-12-600x273.jpg 600w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-12.jpg 915w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u8aac\u660e<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>userId<\/code>: \u30e6\u30fc\u30b6\u30fcID<\/li>\n\n\n\n<li><code>movieId<\/code>\u6620\u753bID : \u6620\u753bID<\/li>\n\n\n\n<li><code>\u8a55\u4fa1<\/code>: \u30e6\u30fc\u30b6\u30fc\u8a55\u4fa1 (1~5)<\/li>\n\n\n\n<li><code>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7<\/code>\u8a55\u4fa1\u3055\u308c\u305f\u6642\u9593 : \u8a55\u4fa1\u3055\u308c\u305f\u6642\u9593<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30fc\u30bf\u3092\u63a2\u7d22\u3059\u308b\u3053\u3068\u3067\u3001\u5404\u30e6\u30fc\u30b6\u30fc\u304c\u3069\u306e\u3088\u3046\u306a\u6620\u753b\u306b\u3069\u306e\u3088\u3046\u306a\u8a55\u4fa1\u3092\u4ed8\u3051\u305f\u304b\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u3053\u306e\u60c5\u5831\u3092\u3082\u3068\u306b\u6620\u753b\u63a8\u85a6\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2.\u6620\u753b\u8a55\u4fa1\u5206\u5e03\u306e\u53ef\u8996\u5316<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306b\u3001\u6620\u753b\u306e\u8a55\u4fa1\u30c7\u30fc\u30bf\u306e\u5206\u5e03\u3092\u8996\u899a\u5316\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u8a55\u4fa1\u30c7\u30fc\u30bf\u306f\u901a\u5e381\u70b9\u304b\u30895\u70b9\u307e\u3067\u306e\u7bc4\u56f2\u306b\u5206\u304b\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u3069\u306e\u3088\u3046\u306a\u30b9\u30b3\u30a2\u304c\u6700\u3082\u591a\u304f\u4e0e\u3048\u3089\u308c\u305f\u304b\u3092\u8996\u899a\u7684\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u8208\u5473\u6df1\u3044\u6d1e\u5bdf\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">R\u3067\u306e\u8a55\u4fa1\u5206\u5e03\u306e\u53ef\u8996\u5316<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code># ggplot2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u8aad\u307f\u8fbc\u307f\ninstall.packages(\"ggplot2\")\nlibrary(ggplot2)\n\n#\u306e\u8a55\u4fa1\u5206\u5e03\u306e\u53ef\u8996\u5316\nggplot(ratings, aes(x=rating)) + ggplot(ratings, aes(x=rating))\n  geom_histogram(binwidth=0.5, fill=\"blue\", color=\"black\", alpha=0.7) +\n  labs(title=\"MovieLens\u8a55\u4fa1\u5206\u5e03\", x=\"\u8a55\u4fa1\", y=\"\u983b\u5ea6\")<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a55\u4fa1\u5206\u5e03\u3092\u793a\u3059\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002\u3053\u306eR\u30c7\u30fc\u30bf\u5206\u6790\u306e\u4f8b\u304b\u3089\u5206\u304b\u308b\u3088\u3046\u306b\u3001\u8a55\u4fa1\u304c\u7279\u5b9a\u306e\u90e8\u5206\u306b\u96c6\u307e\u3063\u3066\u3044\u308b\u5834\u5408\u304c\u591a\u3044\u3067\u3059\u3002 \u4f8b\u3048\u3070\u30014\u70b9\u30845\u70b9\u306e\u3088\u3046\u306a\u9ad8\u3044\u8a55\u4fa1\u304c\u983b\u7e41\u306b\u4e0e\u3048\u3089\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u3001\u80af\u5b9a\u7684\u306a\u8a55\u4fa1\u304c\u591a\u3044\u3068\u3044\u3046\u4e8b\u5b9f\u3092\u8996\u899a\u7684\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<style>.kb-image2535_5d0009-76 .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image2535_5d0009-76 img.kb-img, .kb-image2535_5d0009-76 .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image2535_5d0009-76\"><figure class=\"aligncenter size-medium_large\"><img decoding=\"async\" width=\"768\" height=\"541\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-13-768x541.jpg\" alt=\"R \ub370\uc774\ud130\ubd84\uc11d \uc608\uc81c - \uc601\ud654 \ud3c4\uc810 \ub370\uc774\ud130 \ubd84\uc11d - \ud3c9\uc810 \ubd84\ud3ec \ud788\uc2a4\ud1a0\uadf8\ub7a8\" class=\"kb-img wp-image-2538\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-13-768x541.jpg 768w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-13-300x211.jpg 300w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-13-600x423.jpg 600w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-13.jpg 1200w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b8\u30e3\u30f3\u30eb\u5225\u5e73\u5747\u8a55\u4fa1\u5206\u6790<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306b\u3001\u6620\u753b\u306e\u30b8\u30e3\u30f3\u30eb\u306b\u3088\u3063\u3066\u8a55\u4fa1\u304c\u3069\u306e\u3088\u3046\u306b\u7570\u306a\u308b\u304b\u3092\u5206\u6790\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u30b8\u30e3\u30f3\u30eb\u306b\u3088\u3063\u3066\u3069\u306e\u3088\u3046\u306a\u9055\u3044\u304c\u3042\u308b\u304b\u3092\u5206\u6790\u3059\u308b\u3053\u3068\u3067\u3001\u7279\u5b9a\u306e\u30b8\u30e3\u30f3\u30eb\u304c\u3088\u308a\u591a\u304f\u306e\u4eba\u306b\u652f\u6301\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u3001\u6620\u753b\u306e\u30b8\u30e3\u30f3\u30eb\u60c5\u5831\u3068\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u5206\u6790\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u6620\u753b\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u8aad\u307f\u8fbc\u307f\nmovies &lt;- fread(&quot;C:\/Users\/user\/user\/Documents\/Project_R\/data\/ml-latest-small\/movies.csv&quot;)\n\n# \u6620\u753b\u30c7\u30fc\u30bf\u3068\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u306e\u7d50\u5408\nmovie_ratings &lt;- merge(ratings, movies, by=&quot;movieId&quot;)\n\n# \u30b8\u30e3\u30f3\u30eb\u5225\u5e73\u5747\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a08\u7b97\ngenre_avg_ratings &lt;- movie_ratings[, .(mean_rating=mean(rating)), by=genres].\n\n# \u4e0a\u4f4d20\u30b8\u30e3\u30f3\u30eb\u306e\u53ef\u8996\u5316\ntop_genres &lt;- genre_avg_ratings[order(-mean_rating)][1:20].\nggplot(top_genres, aes(x=reorder(genres, mean_rating), y=mean_rating)) +\n  geom_col(fill=&quot;green&quot;) + +...\n  coord_flip() + + coord_flip()\n  labs(title=&quot;\u30b8\u30e3\u30f3\u30eb\u5225\u5e73\u5747\u8a55\u4fa1&quot;, x=&quot;\u30b8\u30e3\u30f3\u30eb&quot;, y=&quot;\u5e73\u5747\u8a55\u4fa1&quot;)<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30c7\u30fc\u30bf\u5206\u6790\u4f8b\u3067\u306f\u3001\u7279\u5b9a\u306e\u30b8\u30e3\u30f3\u30eb\u304c\u5e73\u5747\u7684\u306b\u9ad8\u3044\u8a55\u4fa1\u3092\u5f97\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5206\u6790\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30bf\u30ea\u30fc\u3084\u30c9\u30e9\u30de\u306e\u30b8\u30e3\u30f3\u30eb\u304c\u9ad8\u3044\u5e73\u5747\u8a55\u4fa1\u3092\u5f97\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u30b8\u30e3\u30f3\u30eb\u304c\u597d\u304d\u306a\u8996\u8074\u8005\u5c64\u304c\u591a\u3044\u3053\u3068\u3092\u793a\u5506\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<style>.kb-image2535_ec1325-c3 .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image2535_ec1325-c3 img.kb-img, .kb-image2535_ec1325-c3 .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image2535_ec1325-c3\"><figure class=\"aligncenter size-medium_large\"><a href=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-14.jpg\" class=\"kb-advanced-image-link\"><img decoding=\"async\" width=\"768\" height=\"541\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-14-768x541.jpg\" alt=\"R \ub370\uc774\ud130\ubd84\uc11d \uc608\uc81c - \uc601\ud654 \ud3c4\uc810 \ub370\uc774\ud130 \ubd84\uc11d - \uc7a5\ub974\ubcc4 \ud3c9\uade0 \ud3c4\uc810\" class=\"kb-img wp-image-2539\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-14-768x541.jpg 768w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-14-300x211.jpg 300w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-14-600x423.jpg 600w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-14.jpg 1200w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u4eba\u6c17\u306e\u6620\u753b\u5206\u6790<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306b\u3001\u8a55\u4fa1\u30c7\u30fc\u30bf\u304b\u3089\u6700\u3082\u4eba\u6c17\u306e\u3042\u308b\u6620\u753b\u3092\u5206\u6790\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002 \u8a55\u4fa1\u304c\u591a\u3044\u6620\u753b\u306f\u3001\u305d\u308c\u3060\u3051\u89b3\u5ba2\u306e\u95a2\u5fc3\u304c\u9ad8\u304b\u3063\u305f\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u6620\u753b\u3054\u3068\u306e\u8a55\u4fa1\u6570\u3092\u8a08\u7b97\nmovie_popularity &lt;- movie_ratings[, .N, by=movieId][order(-N)][1:10]\u3002\n\n# \u4eba\u6c17\u6620\u753b\u30bf\u30a4\u30c8\u30eb\u3068\u8a55\u4fa1\u6570\u51fa\u529b\ntop_movies &lt;- merge(movie_popularity, movies, by=&quot;movieId&quot;)\nprint(top_movies[, .(title, N)])<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30fc\u30c9\u306b\u3088\u308a\u3001\u6700\u3082\u591a\u304f\u306e\u8a55\u4fa1\u3092\u53d7\u3051\u305f\u6620\u753b\u30c8\u30c3\u30d710\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3069\u306e\u3088\u3046\u306a\u6620\u753b\u304c\u89b3\u5ba2\u306b\u591a\u304f\u306e\u95a2\u5fc3\u3092\u53d7\u3051\u305f\u304b\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u3053\u308c\u306f\u30de\u30fc\u30b1\u30c6\u30a3\u30f3\u30b0\u6226\u7565\u3092\u7acb\u3066\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u60c5\u5831\u306b\u306a\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff08\u79c1\u306e\u4e00\u756a\u597d\u304d\u306a\u6620\u753b\u3067\u3042\u308b\u30d6\u30ec\u30a4\u30d6\u30cf\u30fc\u30c8\u304c1\u4f4d\u3067\u3059\u306d\uff01\uff09\u3002<\/p>\n\n\n<style>.kb-image2535_9867e5-26 .kb-image-has-overlay:after{opacity:0.3;border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;}.kb-image2535_9867e5-26 img.kb-img, .kb-image2535_9867e5-26 .kb-img img{border-top-left-radius:5px;border-top-right-radius:5px;border-bottom-right-radius:5px;border-bottom-left-radius:5px;box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image2535_9867e5-26\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"413\" height=\"190\" src=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-15.jpg\" alt=\"R \ub370\uc774\ud130\ubd84\uc11d \uc608\uc81c - \uc601\ud654 \ud3c4\uc810 \ub370\uc774\ud130 \ubd84\uc11d - \uc778\uae30 \uc601\ud654 \uc81c\ubaa9 \ud3c4\uc810\" class=\"kb-img wp-image-2540\" srcset=\"https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-15.jpg 413w, https:\/\/secondlife.lol\/wp-content\/uploads\/2024\/09\/image-15-300x138.jpg 300w\" sizes=\"(max-width: 413px) 100vw, 413px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u5206\u6790\u3067\u3088\u304f\u3042\u308b\u30df\u30b9\u3068\u89e3\u6c7a\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30fc\u30bf\u5206\u6790\u3092\u3059\u308b\u969b\u306b\u3088\u304f\u767a\u751f\u3059\u308b\u9593\u9055\u3044\u3092\u907f\u3051\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002 \u7279\u306b\u3001\u4eca\u56de\u306e\u30c7\u30fc\u30bf\u5206\u6790\u4f8b\u306e\u3088\u3046\u306a\u5b9f\u6226\u5206\u6790\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u9593\u9055\u3044\u304c\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u524d\u51e6\u7406\u4e0d\u8db3<\/strong>: \u5206\u6790\u3059\u308b\u524d\u306b\u3001\u30c7\u30fc\u30bf\u306b\u6b20\u6e2c\u5024\u3084\u91cd\u8907\u5024\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u5fc5\u305a\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 \u6b20\u6e2c\u5024\u3092\u524a\u9664\u3057\u305f\u308a\u3001\u9069\u5207\u306b\u51e6\u7406\u3057\u306a\u3044\u3068\u3001\u5206\u6790\u7d50\u679c\u304c\u6b6a\u3080\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u9593\u9055\u3063\u305f\u8996\u899a\u5316\u306e\u9078\u629e<\/strong>\uff1a\u30c7\u30fc\u30bf\u3092\u53ef\u8996\u5316\u3059\u308b\u969b\u306b\u306f\u3001\u9069\u5207\u306a\u30b0\u30e9\u30d5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u30ab\u30c6\u30b4\u30ea\u578b\u30c7\u30fc\u30bf\u306b\u30d2\u30b9\u30c8\u30b0\u30e9\u30e0\u3092\u4f7f\u7528\u3059\u308b\u3068\u3044\u3046\u9593\u9055\u3044\u3092\u907f\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u904e\u5270\u306a\u30c7\u30fc\u30bf\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/strong>: \u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u3060\u3051\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u3053\u3068\u306f\u91cd\u8981\u3067\u3059\u304c\u3001\u3042\u307e\u308a\u306b\u3082\u591a\u304f\u306e\u30c7\u30fc\u30bf\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u3068\u3001\u91cd\u8981\u306a\u60c5\u5831\u3092\u898b\u9003\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q1: MovieLens\u306e\u30c7\u30fc\u30bf\u306f\u3069\u3053\u3067\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u304b\uff1f<\/strong><br>A: MovieLens\u306e\u30c7\u30fc\u30bf\u306fMovieLens\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002\u69d8\u3005\u306a\u30b5\u30a4\u30ba\u306e\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u304c\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u3053\u3067\u306f\u300cml-latest-small\u300d\u30c7\u30fc\u30bf\u3092\u4f7f\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q2: \u8a55\u4fa1\u30c7\u30fc\u30bf\u304b\u3089\u3069\u306e\u3088\u3046\u306a\u30a4\u30f3\u30b5\u30a4\u30c8\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304b\uff1f<\/strong><br>A:\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u3092\u901a\u3058\u3066\u3001\u6620\u753b\u306e\u4eba\u6c17\u5ea6\u3001\u30b8\u30e3\u30f3\u30eb\u5225\u306e\u597d\u307f\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u597d\u307f\u306a\u3069\u3092\u5206\u6790\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6620\u753b\u63a8\u85a6\u30b7\u30b9\u30c6\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u8cc7\u6599\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q3: \u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u3092\u5206\u6790\u3059\u308b\u306e\u306b\u6700\u3082\u4fbf\u5229\u306aR\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u4f55\u3067\u3059\u304b\uff1f<\/strong><br>A\uff1a <code>ggplot2<\/code>\u306f\u30d3\u30b8\u30e5\u30a2\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u306b\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3001\u30c7\u30fc\u30bf\u51e6\u7406\u306b\u306f <code>data.table<\/code>\u304c\u52b9\u679c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6574\u7406\u3059\u308b<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001R\u306e\u30c7\u30fc\u30bf\u5206\u6790\u306e\u4f8b\u3068\u3057\u3066\u6620\u753b\u306e\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30c7\u30fc\u30bf\u3092\u6d3b\u7528\u3057\u3066\u5206\u6790\u3059\u308b\u65b9\u6cd5\u3092\u5b66\u3073\u307e\u3057\u305f\u3002 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