{"height":"190","provider_url":"https://hatena.blog","blog_title":"yasuhisa's blog","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/s/syou6162/20161103/20161103155813.png","published":"2009-02-21 05:32:44","blog_url":"https://www.yasuhisay.info/","author_url":"https://blog.hatena.ne.jp/syou6162/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.yasuhisay.info%2Fentry%2F20090221%2F1235161964\" title=\"R\u306e\u8a00\u8a9e\u4ed5\u69d8\u3068\u304b\u8272\u3005\u53c2\u8003\u306b\u3067\u304d\u305d\u3046\u306a\u95a2\u6570\u3068\u304b\u306e\u30e1\u30e2 - yasuhisa&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"R\u306e\u8a00\u8a9e\u4ed5\u69d8\u3068\u304b\u8272\u3005\u53c2\u8003\u306b\u3067\u304d\u305d\u3046\u306a\u95a2\u6570\u3068\u304b\u306e\u30e1\u30e2","provider_name":"Hatena Blog","categories":["R","C"],"description":"\u306a\u3093\u3068\u3044\u3046S\u5f0fR Language De\ufb01nition\u306ep3\u306e\u30b7\u30f3\u30dc\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3002 > as.list(quote(x + y)) [[1]] `+` [[2]] x [[3]] y > as.list(quote((x + y) * z)) [[1]] `*` [[2]] (x + y) [[3]] z \u30e2\u30c7\u30eb\u5f0f \u8a00\u8a9e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 R \u8a00\u8a9e\u3092\u69cb\u6210\u3059\u308b\u4e09\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u578b\u304c\u3042\u308b\u3002cal ls, expressions, \u305d\u3057\u3066 names \u3067\u3042\u308b\u3002R \u306f\u578b \"expression\"\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6301\u3064\u306e\u3067\u3001\u4ed6\u306e\u6587\u8108\u4e2d\u3067\u8a00\u8449\u306b\u3088\u308b\u8868\u73fe\u5f0f\u306e\u4f7f\u7528\u3092\u907f\u3051\u308b\u3053\u3068\u306b\u3059\u308b\u3002\u7279\u306b\u69cb\u6587\u7684\u306b\u6b63\u3057\u3044\u8868\u73fe\u306f st\u2026","version":"1.0","author_name":"syou6162","url":"https://www.yasuhisay.info/entry/20090221/1235161964","type":"rich","width":"100%"}