R简单等同于strcat

Question

我想要一种将字符串数组连接成单个字符串的方法。

是否有更基本的方法来连接数组中的值而不是我的＆＃39; paste.c＆＃39;功能如下？

paste(1,2,3)    # result: "1 2 3"
paste(c(1,2,3)) # result: "1" "2" "3", analogous to Unix 'paste' result
paste.c <- function(y) {
    as.character(
        tapply( X        = y, 
                INDEX    = rep.int(1, length(y)), 
                FUN      = paste, 
                sep      = "", 
                collapse = ""
        )
    )
}
paste.c(c(1,2,3)) # result: "123", which is what I need at the moment

Answer 1

怎么样：

  paste(c(1,2,3), collapse = '')