{"id":3018,"date":"2023-07-19T14:36:38","date_gmt":"2023-07-19T14:36:38","guid":{"rendered":"https:\/\/statorials.org\/ja\/r-%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%af%e5%ae%8c%e5%85%a8%e3%81%ab%e7%89%b9%e7%95%b0%e3%81%a6%e3%82%99%e3%81%99\/"},"modified":"2023-07-19T14:36:38","modified_gmt":"2023-07-19T14:36:38","slug":"r-%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%af%e5%ae%8c%e5%85%a8%e3%81%ab%e7%89%b9%e7%95%b0%e3%81%a6%e3%82%99%e3%81%99","status":"publish","type":"post","link":"https:\/\/statorials.org\/ja\/r-%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%af%e5%ae%8c%e5%85%a8%e3%81%ab%e7%89%b9%e7%95%b0%e3%81%a6%e3%82%99%e3%81%99\/","title":{"rendered":"R \u3067\u4fee\u5fa9\u3059\u308b\u65b9\u6cd5: \u30b7\u30b9\u30c6\u30e0\u306f\u307e\u3055\u306b\u7279\u7570\u3067\u3059"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">R \u3067\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30a8\u30e9\u30fc\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>Lapack routine dgesv: system is exactly singular: U[2,2] = 0\n<\/strong><\/pre>\n<p><span style=\"color: #000000;\">\u3053\u306e\u30a8\u30e9\u30fc\u306f\u3001 <strong>solve()<\/strong>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3088\u3046\u3068\u3057\u305f\u3068\u304d\u306b\u3001\u51e6\u7406\u3057\u3066\u3044\u308b\u884c\u5217\u304c\u9006\u884c\u5217\u3092\u6301\u305f\u306a\u3044\u7279\u7570\u884c\u5217\u3067\u3042\u308b\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001\u3053\u306e\u30a8\u30e9\u30fc\u3092\u5b9f\u969b\u306b\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/span><\/p>\n<h3><strong>\u30a8\u30e9\u30fc\u3092\u518d\u73fe\u3059\u308b\u65b9\u6cd5<\/strong><\/h3>\n<p><span style=\"color: #000000;\">R \u3067\u6b21\u306e\u884c\u5217\u3092\u4f5c\u6210\u3059\u308b\u3068\u3057\u307e\u3059\u3002<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#create singular matrix\n<span style=\"color: #000000;\">mat &lt;- matrix(c(1, 1, 1, 1), ncol= <span style=\"color: #008000;\">2<\/span> , nrow= <span style=\"color: #008000;\">2<\/span> )\n\n<span style=\"color: #008080;\">#view matrix\n<\/span>mast\n\n     [,1] [,2]\n[1,] 1 1\n[2,] 1 1\n<\/span><\/span><\/strong><\/span><\/pre>\n<p><span style=\"color: #000000;\">\u3053\u3053\u3067\u3001 <strong>solve()<\/strong>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u9006\u884c\u5217\u3092\u8a08\u7b97\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3057\u307e\u3059\u3002<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#attempt to invert matrix\n<span style=\"color: #000000;\">solve(mat)\n\nError in solve.default(mat): \n  Lapack routine dgesv: system is exactly singular: U[2,2] = 0<\/span><\/span><\/strong><\/span><\/pre>\n<p><span style=\"color: #000000;\">\u4f5c\u6210\u3057\u305f\u884c\u5217\u306b\u306f\u9006\u884c\u5217\u304c\u306a\u3044\u305f\u3081\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>\u6ce8<\/strong>: Wolfram MathWorld \u306e<a href=\"https:\/\/mathworld.wolfram.com\/SingularMatrix.html\" target=\"_blank\" rel=\"noopener\">\u3053\u306e\u30da\u30fc\u30b8<\/a>\u306b\u306f\u3001\u9006\u884c\u5217\u3092\u6301\u305f\u306a\u3044\u884c\u5217\u306e 10 \u500b\u306e\u7570\u306a\u308b\u4f8b\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u5b9a\u7fa9\u4e0a\u3001\u884c\u5217\u5f0f\u304c\u30bc\u30ed\u306e\u884c\u5217\u306f\u7279\u7570\u3067\u3059\u3002<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>det()<\/strong>\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u7279\u5b9a\u306e\u884c\u5217\u3092\u53cd\u8ee2\u3059\u308b\u524d\u306b\u305d\u306e\u884c\u5217\u5f0f\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#calculate determinant of matrix\n<span style=\"color: #000000;\">det(mat)\n\n[1] 0\n<\/span><\/span><\/strong><\/span><\/pre>\n<p><span style=\"color: #000000;\">\u884c\u5217\u306e\u884c\u5217\u5f0f\u306f\u30bc\u30ed\u3067\u3042\u308a\u3001\u3053\u308c\u304c\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u7406\u7531\u3092\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n<h3><strong>\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5<\/strong><\/h3>\n<p><span style=\"color: #000000;\">\u3053\u306e\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u552f\u4e00\u306e\u65b9\u6cd5\u306f\u3001\u5358\u7d14\u306b\u7279\u7570\u3067\u306a\u3044\u884c\u5217\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"color: #000000;\">\u305f\u3068\u3048\u3070\u3001 <strong>solve()<\/strong>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066 R \u306e\u6b21\u306e\u884c\u5217\u3092\u53cd\u8ee2\u3059\u308b\u3068\u3057\u307e\u3059\u3002<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#create matrix that is not singular\n<span style=\"color: #000000;\">mat &lt;- matrix(c(1, 7, 4, 2), ncol= <span style=\"color: #008000;\">2<\/span> , nrow= <span style=\"color: #008000;\">2<\/span> )\n<\/span>\n#view matrix\n<span style=\"color: #000000;\">mast\n\n     [,1] [,2]\n[1,] 1 4\n[2,] 7 2<\/span>\n\n#calculate determinant of matrix\n<span style=\"color: #000000;\">det(mat)\n\n[1] -26\n<\/span>\n#invert matrix\n<span style=\"color: #000000;\">solve(mat)\n\n            [,1] [,2]\n[1,] -0.07692308 0.15384615\n[2,] 0.26923077 -0.03846154<\/span><\/span><\/strong><\/span><\/pre>\n<p><span style=\"color: #000000;\">\u884c\u5217\u306f\u7279\u7570\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u884c\u5217\u3092\u53cd\u8ee2\u3057\u3066\u3082\u30a8\u30e9\u30fc\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u3002<\/span><\/p>\n<h3><span style=\"color: #000000;\"><strong>\u8ffd\u52a0\u30ea\u30bd\u30fc\u30b9<\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\">\u6b21\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001R \u306e\u4ed6\u306e\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/ja\/r-\u6761\u4ef6\u306e\u9577\u3055\u306f-1-\u3066\u3099\u3001\u6700\u521d\u306e\u8981\u7d20\u306e\u307f\u304b\u3099\u4f7f\u7528\u3055\u308c\u307e\u3059\/\" target=\"_blank\" rel=\"noopener\">\u4fee\u6b63\u65b9\u6cd5: \u6761\u4ef6\u306e\u9577\u3055\u304c 1 \u3092\u8d85\u3048\u3066\u304a\u308a\u3001\u6700\u521d\u306e\u8981\u7d20\u306e\u307f\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/a><br \/> <a href=\"https:\/\/statorials.org\/ja\/r-\u306e\u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u975e\u6570\u5024\u5f15\u6570\u3092\u4fee\u5fa9\u3059\u308b\u65b9\u6cd5\/\" target=\"_blank\" rel=\"noopener\">\u4fee\u6b63\u65b9\u6cd5: \u4e8c\u9805\u6f14\u7b97\u5b50\u306e\u6570\u5024\u4ee5\u5916\u306e\u5f15\u6570<\/a><br \/><a href=\"https:\/\/statorials.org\/ja\/r-error-dim-\u306f\u6b63\u306e\u9577\u3055\u3066\u3099\u306a\u3051\u308c\u306f\u3099\u306a\u308a\u307e\u305b\u3093\/\" target=\"_blank\" rel=\"noopener\">\u4fee\u6b63\u65b9\u6cd5: dim(X) \u306f\u6b63\u306e\u9577\u3055\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093<\/a><br \/><a href=\"https:\/\/statorials.org\/ja\/\u672a\u4f7f\u7528\u306e\u5f15\u6570\u3092\u9078\u629e\u3059\u308b\u969b\u306e-dplyr-\u30a8\u30e9\u30fc\/\" target=\"_blank\" rel=\"noopener\">\u4fee\u6b63\u65b9\u6cd5: \u672a\u4f7f\u7528\u306e\u5f15\u6570\u3092\u9078\u629e\u3059\u308b\u969b\u306e\u30a8\u30e9\u30fc<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R \u3067\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30a8\u30e9\u30fc\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 Lapack routine dgesv: system is exactly singular: U[2,2] = 0 \u3053\u306e\u30a8\u30e9\u30fc\u306f\u3001 solve()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3088\u3046 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3018","post","type-post","status-publish","format-standard","hentry","category-16"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>R \u3067\u4fee\u6b63\u3059\u308b\u65b9\u6cd5: \u30b7\u30b9\u30c6\u30e0\u304c\u5b8c\u5168\u306b\u7279\u7570\u3067\u3042\u308b - \u7d71\u8a08<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001R \u306e\u6b21\u306e\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059: Lapack \u30eb\u30fc\u30c1\u30f3 dgesv: \u30b7\u30b9\u30c6\u30e0\u306f\u5b8c\u5168\u306b\u5358\u6570\u3067\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:\/\/statorials.org\/ja\/r-\u30b7\u30b9\u30c6\u30e0\u306f\u5b8c\u5168\u306b\u7279\u7570\u3066\u3099\u3059\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R \u3067\u4fee\u6b63\u3059\u308b\u65b9\u6cd5: \u30b7\u30b9\u30c6\u30e0\u304c\u5b8c\u5168\u306b\u7279\u7570\u3067\u3042\u308b - \u7d71\u8a08\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001R \u306e\u6b21\u306e\u30a8\u30e9\u30fc\u3092\u4fee\u6b63\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059: Lapack \u30eb\u30fc\u30c1\u30f3 dgesv: \u30b7\u30b9\u30c6\u30e0\u306f\u5b8c\u5168\u306b\u5358\u6570\u3067\u3059\u3002\" 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