{"id":76818,"date":"2024-03-20T17:37:36","date_gmt":"2024-03-20T08:37:36","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%ae%e3%83%9e%e3%83%83%e3%83%81%e9%96%a2%e6%95%b0%e3%81%ae%e7%94%a8%e6%b3%95%e3%81%af\/"},"modified":"2025-08-11T18:32:30","modified_gmt":"2025-08-11T09:32:30","slug":"r%e8%a8%80%e8%aa%9e%e3%81%ae%e3%83%9e%e3%83%83%e3%83%81%e9%96%a2%e6%95%b0%e3%81%ae%e7%94%a8%e6%b3%95%e3%81%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%ae%e3%83%9e%e3%83%83%e3%83%81%e9%96%a2%e6%95%b0%e3%81%ae%e7%94%a8%e6%b3%95%e3%81%af\/","title":{"rendered":"R\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f?"},"content":{"rendered":"

R\u8a00\u8a9e\u306b\u304a\u3044\u3066\u3001match\u95a2\u6570\u306f\u3001\u3042\u308b\u30d9\u30af\u30c8\u30eb\u3068\u4e00\u81f4\u3059\u308b\u3001\u5225\u306e\u30d9\u30af\u30c8\u30eb\u306e\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u63a2\u3059\u306e\u306b\u7528\u3044\u308b\u3002\u305d\u306e\u4f7f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3042\u308b\u3002<\/p>\n

match(x, table, nomatch = NA)\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u8a00\u3044\u63db\u3048\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

x \u3068 table \u3092\u7167\u5408\u3059\u308b\u3001\u7167\u5408\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306f NA \u3092\u8fd4\u3059<\/p>\n

\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

    \n
  1. \u691c\u7d22\u4e2d\u306e\u30d9\u30af\u30c8\u30eb<\/li>\n
  2. \u305d\u306e\u8981\u7d20\u3092\u542b\u3080\u30d9\u30af\u30c8\u30eb<\/li>\n
  3. \u6307\u5b9a\u306e\u306a\u3044\u5834\u5408\u306fNA\u3092\u8fd4\u3059\u5024<\/li>\n<\/ol>\n

    \u4f8b<\/p>\n

    x <- c(\"apple\", \"banana\", \"orange\", \"pear\")\r\ntable <- c(\"orange\", \"apple\", \"banana\")\r\nmatch(table, x)\r\n<\/code><\/pre>\n
    \u9ad8\u7cbe\u5ea6\u8a08\u7b97\u3092\u884c\u3046<\/p>\n
    [1] 2 3 NA\r\n<\/code><\/pre>\n
    \u3053\u308c\u306fx\u30d9\u30af\u30c8\u30eb\u3067\u306f”apple”\u306f3\u756a\u76ee\u3001”banana”\u306f\u5b58\u5728\u305b\u305aNA\u304c\u8fd4\u308a\u3001”orange”\u306f2\u756a\u76ee\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    R\u8a00\u8a9e\u306b\u304a\u3044\u3066\u3001match\u95a2\u6570\u306f\u3001\u3042\u308b\u30d9\u30af\u30c8\u30eb\u3068\u4e00\u81f4\u3059\u308b\u3001\u5225\u306e\u30d9\u30af\u30c8\u30eb\u306e\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u63a2\u3059\u306e\u306b\u7528\u3044\u308b\u3002\u305d\u306e\u4f7f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3042\u308b\u3002 match(x, table, nomatch = NA)\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u8a00\u3044\u63db\u3048\u308b\u3068\u6b21 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-76818","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"\nR\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f? - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"R\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f?\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/r\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f?\" \/>\n<meta property=\"og:description\" content=\"R\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f?\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/r\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-20T08:37:36+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-11T09:32:30+00:00\" \/>\n<meta name=\"author\" content=\"\u590f\u6a39, \u98a8\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u590f\u6a39, \u98a8\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%ae%e3%83%9e%e3%83%83%e3%83%81%e9%96%a2%e6%95%b0%e3%81%ae%e7%94%a8%e6%b3%95%e3%81%af\/\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%ae%e3%83%9e%e3%83%83%e3%83%81%e9%96%a2%e6%95%b0%e3%81%ae%e7%94%a8%e6%b3%95%e3%81%af\/\",\"name\":\"R\u8a00\u8a9e\u306e\u30de\u30c3\u30c1\u95a2\u6570\u306e\u7528\u6cd5\u306f? 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