{"provider_url":"https://hatena.blog","url":"https://randommemory.hatenablog.com/entry/2016/04/24/132913","provider_name":"Hatena Blog","type":"rich","image_url":null,"published":"2016-04-24 13:29:13","categories":["statistics"],"version":"1.0","blog_title":"\u3089\u3093\u3060\u3080\u306a\u8a18\u61b6","width":"100%","description":"\u96fb\u8eca\u306e\u4e2d\u3067\u307c\u3093\u3084\u308a\u8aad\u307f\u3064\u3064\u3002\u5909\u52d5\u4fc2\u6570(coefficient of variation) = \u6a19\u6e96\u504f\u5dee / \u5e73\u5747\u5024\u3042\u308b\u7a0b\u5ea6\u5e73\u5747\u5024\u304c0\u304b\u3089\u96e2\u308c\u3066\u3044\u306a\u3044\u3068\u3042\u304b\u3093\u3088\u306a\u3001\u3053\u308c\u3060\u3068\u3002\u4e2d\u592e\u5024, \u6700\u983b\u5024, \u56db\u5206\u4f4d\u6570\u30025\u6570\u8981\u7d04 = \u6700\u5c0f\u5024, \u7b2c1\u56db\u5206\u4f4d\u6570, \u4e2d\u592e\u5024(\u7b2c2\u56db\u5206\u4f4d\u6570), \u7b2c3\u56db\u5206\u4f4d\u6570, \u6700\u5927\u5024\u7bb1\u3072\u3052\u56f3 = 5\u6570\u8981\u7d04\u306e\u53ef\u8996\u5316\u3002\u3072\u3052\u306e\u9577\u3055\u306f\u56db\u5206\u4f4d\u7bc4\u56f2\u306e1.5\u500d\u304f\u3089\u3044\u306b\u3057\u3061\u3083\u3046\u3053\u3068\u3082\u3002\u76f8\u95a2\u4fc2\u6570 $r_{xy} = \\mathrm{Cov}(x,y)/ \\sigma(x) \\sigma(y)$ \u3053\u308c\u306f\u3001Schwarz\u306e\u4e0d\u7b49\u5f0f\u3088\u308a\u3001-1\u304b\u30891\u306e\u7bc4\u56f2\u306e\u5024\u306b\u306a\u308b\u3002\u504f\u76f8\u95a2\u4fc2\u6570: \\begin{equation} \u2026","author_name":"derwind","blog_url":"https://randommemory.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/derwind/","height":"190","title":"\u7d71\u8a08\u52c9\u5f37\u30ce\u30fc\u30c8(2)","html":""}