基本用法
paste (..., sep = " ", collapse = NULL)
paste0(..., collapse = NULL)
例子
1、直接连接字符。paste0 无间隔 paste 有
> paste0('a','b','c')
[1] "abc"
>
> paste('a','b','c')
[1] "a b c"
2、paste可以选连接符
> paste('a','b','c',sep = '')
[1] "abc"
> paste('a','b','c',sep = '*')
[1] "a*b*c"
3、可以直接当as.character用
> ## When passing a single vector, paste0 and paste work like as.character.
> paste0(1:12)
[1] "1" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11" "12"
> paste(1:12) # same
[1] "1" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11" "12"
> as.character(1:12) # same
[1] "1" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11" "12"
4、连接两个向量 并会回环
> paste(month.abb, letters)
[1] "Jan a" "Feb b" "Mar c" "Apr d" "May e" "Jun f" "Jul g" "Aug h" "Sep i" "Oct j" "Nov k" "Dec l" "Jan m" "Feb n" "Mar o" "Apr p" "May q"
[18] "Jun r" "Jul s" "Aug t" "Sep u" "Oct v" "Nov w" "Dec x" "Jan y" "Feb z"
