{"title":"\u5206\u6563\u30fb\u6a19\u6e96\u504f\u5dee","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","blog_title":"IT\u306e\u968a\u9577\u306e\u30d6\u30ed\u30b0","width":"100%","height":"190","description":"\u7d71\u8a08\u5b66\uff13\u7d1a\u53d6\u308b\u305e\uff01\uff01\uff01 \u89aa\u306e\u9854\u3088\u308a\u4f55\u5ea6\u3082\u307f\u305f\u5206\u6563\u3068\u6a19\u6e96\u504f\u5dee $ python >>> a = [5, 3, 4, 10, 3] >>> a_ = sum(a) / len(a) # \u5e73\u5747 >>> a_ 5.0 >>> s = sum([(i - a_)**2 for i in a]) / len(a) # \u5206\u6563 >>> s 6.8 >>> import math >>> math.sqrt(s) # \u5206\u6563\u3092\u30eb\u30fc\u30c8\u3067\u304b\u3051\u308b\u3068\u6a19\u6e96\u504f\u5dee 2.6076809620810595 www.youtube.com \u3082\u3046\uff11\u3064\u306e\u65b9\u6cd5\u3067\u3068\u304f >>> x2_ = sum([i ** 2 for i in a]) /\u2026","author_url":"https://blog.hatena.ne.jp/aipacommander/","type":"rich","published":"2018-07-24 01:48:55","author_name":"aipacommander","blog_url":"https://aipacommander.com/","version":"1.0","url":"https://aipacommander.com/entry/2018/07/24/014855","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Faipacommander.com%2Fentry%2F2018%2F07%2F24%2F014855\" title=\"\u5206\u6563\u30fb\u6a19\u6e96\u504f\u5dee - IT\u306e\u968a\u9577\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"categories":["\u7d71\u8a08"]}