{"author_name":"dichika","image_url":null,"height":"190","author_url":"https://blog.hatena.ne.jp/dichika/","title":":=\u3067\u30b3\u30fc\u30c9\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u3059\u308b","url":"https://dichika.hateblo.jp/entry/20140730/p1","type":"rich","blog_url":"https://dichika.hateblo.jp/","provider_name":"Hatena Blog","published":"2014-07-30 00:00:00","blog_title":"\u76c6\u683d\u65e5\u8a18","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdichika.hateblo.jp%2Fentry%2F20140730%2Fp1\" title=\":=\u3067\u30b3\u30fc\u30c9\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u3059\u308b - \u76c6\u683d\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["R","dplyr","magrittr"],"version":"1.0","description":"\u4e0b\u8a18\u306e\u3088\u3046\u306b\u30b0\u30eb\u30fc\u30d7\u5316\u3057\u3066\u6c42\u3081\u305f\u7d71\u8a08\u91cf\u3092\u5143\u306e\u30c7\u30fc\u30bf\u306b\u4ed8\u52a0\u3059\u308b\u3053\u3068\u306f\u591a\u3005\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002 library(dplyr) iris <- iris %>% group_by(Species) %>% mutate(Sp.mean=mean(Sepal.Length)) \u3057\u304b\u3057\u3001\u3053\u3053\u3067iris\u30922\u56de\u3082\u66f8\u304f\u306e\u306f\u5197\u9577\u306a\u306e\u3067\u30b7\u30f3\u30d7\u30eb\u306b\u3057\u305f\u3044\u3002 \u305d\u3093\u306a\u6642\u3053\u305dmagrittr\u306e:=\u3067\u3059\u3002 Compound assignment operator\u3068\u3044\u3044\u307e\u3059\u3002 \u3053\u308c\u3092\u4f7f\u3046\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u76f4\u305b\u307e\u3059\u3002 library(dplyr) library(magrittr) iris := group_by(Species\u2026","provider_url":"https://hatena.blog","width":"100%"}