{"description":"R\u306e\u69cb\u6587 \u30c9\u30c3\u30c8\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3067\u5b66\u3093\u3060\u3002 \u5909\u6570\u4ee3\u5165 <-\u3067\u3001PHP\u3068\u304b\u306e=\u3068\u540c\u3058\u610f\u5473 # \u4ee3\u5165 > x <- 5 > x 5 > y <- 0 # \u5b9a\u7fa9\u3057\u305f\u5909\u6570\u306e\u78ba\u8a8d > ls() [1] \"x\" \"y\" # \u5909\u6570\u524a\u9664 > rm(x) > z <- 5 # \u8907\u6570\u524a\u9664 > rm(y, z) > ls() character(0) # \u4f55\u3082\u306a\u3044\u3063\u3066\u610f\u5473\u3089\u3057\u3044 # \u540c\u3058\u307fNull > NULL NULL # \u6b20\u640d\u5024 > NA [1] NA # \u975e\u6570 > NaN [1] NaN # \u7121\u9650\u5927 > Inf [1] Inf \u56db\u5247\u6f14\u7b97 > 5 + 3 [1] 8 > 10 / 3 [1] 3.333333 > \u2026","provider_url":"https://hatena.blog","author_name":"aipacommander","blog_title":"IT\u306e\u968a\u9577\u306e\u30d6\u30ed\u30b0","height":"190","url":"https://www.aipacommander.com/entry/2015/12/30/205041","title":"R\u8a00\u8a9e\u3092\u52c9\u5f37\u3057\u3066\u307f\u305f","author_url":"https://blog.hatena.ne.jp/aipacommander/","published":"2015-12-30 20:50:41","provider_name":"Hatena Blog","categories":["R"],"width":"100%","image_url":"https://cdn.user.blog.st-hatena.com/default_entry_og_image/98194825/1514241549987688","blog_url":"https://www.aipacommander.com/","version":"1.0","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.aipacommander.com%2Fentry%2F2015%2F12%2F30%2F205041\" title=\"R\u8a00\u8a9e\u3092\u52c9\u5f37\u3057\u3066\u307f\u305f - 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>"}