{"image_url":"https://images-fe.ssl-images-amazon.com/images/I/51-1q-IODsL._SL160_.jpg","author_name":"dichika","description":"\u3072\u3068\u308a\u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0\u30fc2\u65e5\u76ee\u3002 \u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306e\u5b9f\u884c\u7d50\u679c\u306f\u7686\u3055\u3093\u4e88\u60f3\u3067\u304d\u308b\u3060\u308d\u3046\u304b\u3002 x1 <- c(a=1, a=2, a=3, b=1, b=2, b=3) x2 <- c(a=1:3, b=4:6) \u7d50\u679c\u306f\u3053\u3061\u3089\u3002 > x1 a a a b b b 1 2 3 1 2 3 > x2 a1 a2 a3 b1 b2 b3 1 2 3 4 5 6 \u4eca\u5ea6\u306f\u3053\u3061\u3089\u306e\u30b3\u30fc\u30c9\u3060\u3068\u3069\u3046\u3060\u308d\u3046\u304b\u3002 y <- rep(letters[1:3], c(2, 1, 3)) z <- c(a=\"hoge\", b=\"hoge\", c=\"hage\") res <- z[y] \u7d50\u679c\u306f\u3053\u3061\u3089\u3002 \u540d\u524d\u4ed8\u304d\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u3046\u3053\u2026","provider_name":"Hatena Blog","width":"100%","blog_title":"\u76c6\u683d\u65e5\u8a18","url":"https://dichika.hateblo.jp/entry/20151202/p1","title":"\u540d\u524d\u4ed8\u304d\u30d9\u30af\u30c8\u30eb\u306e\u6319\u52d5","author_url":"https://blog.hatena.ne.jp/dichika/","published":"2015-12-02 00:00:00","blog_url":"https://dichika.hateblo.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdichika.hateblo.jp%2Fentry%2F20151202%2Fp1\" title=\"\u540d\u524d\u4ed8\u304d\u30d9\u30af\u30c8\u30eb\u306e\u6319\u52d5 - \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>","provider_url":"https://hatena.blog","categories":["R","\u3072\u3068\u308a\u30a2\u30c9\u30d9\u30f3\u30c8\u30ab\u30ec\u30f3\u30c0\u30fc"],"type":"rich","version":"1.0","height":"190"}