# R入門教學 - 單元25 - 字串向量 ###### tags: `課程`, `R入門教學` 單元25 - 字串向量 --- - 建立字串向量 - c函數 - c("1", "2", '3') - 內建函數 - scan(what = "character")) - paste("file", 1:5) - tolower(c("A", "B")):轉換小寫 - nchar(c("aa", "aaa")):計算幾個字元 - 正則表示式 - grep:搜尋 - gsub:取代 - R語言的型態轉換 - charater > numeric > integer > logical 結論 ---
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