{"type":"rich","author_name":"kumagi","version":"1.0","provider_url":"https://hatena.blog","height":"190","provider_name":"Hatena Blog","width":"100%","categories":[],"published":"2010-08-17 00:00:00","title":"for_each\u3067\u5e73\u5747\u30fb\u5206\u6563\u3092\u6c42\u3081\u308b","description":"\u914d\u5217\u5185\u306e\u30c7\u30fc\u30bf\u306e\u5e73\u5747\u30fb\u5206\u6563\u3092\u7b97\u51fa\u3059\u308b\u306b\u306f\u901a\u5e38\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f double avg = 0.0; for(size_t i=0; i<data.size(); i++){ avg += data[i];} // \u5408\u8a08\u3092\u8a08\u7b97 avg /= data.size(); // \u7dcf\u6570\u3067\u5272\u3063\u3066\u5e73\u5747\u5024 double var = 0.0; for(size_t i=0; i<data.size(); i++) { var += (data[i] - avg)*(data[i] - avg);} // \u5e73\u5747\u3068\u306e\u5dee\u5206\u30922\u4e57 var /= data.size(); // \u7dcf\u6570\u3067\u5272\u3063\u3066\u5206\u6563\u5024 \u3053\u308c\u3067\u8aad\u307f\u3084\u2026","blog_title":"\u304f\u307e\u30e1\u30e2","image_url":null,"blog_url":"https://kumagi.hatenadiary.org/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkumagi.hatenadiary.org%2Fentry%2F20100817\" title=\"for_each\u3067\u5e73\u5747\u30fb\u5206\u6563\u3092\u6c42\u3081\u308b - \u304f\u307e\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/kumagi/","url":"https://kumagi.hatenadiary.org/entry/20100817"}