[转载]R语言中pasta函数基础

pasta函数主要用于字符串的连接

Usage
paste (..., sep = " ", collapse = NULL)

paste0(..., collapse = NULL)

...为需要转化为字符型的对象

sep用于指定分隔符，将返回值分割为字符向量

collapse也用于指定分隔符，区别于sep，用于将所有的对象连接在一起，并定义分隔符。

paste函数sep变量的默认值设置为空格，paste0没有sep变量。

> paste(c("A","B","C"),1:3,sep=",")
[1] "A,1" "B,2" "C,3"
> paste(c("A","B","C"),1:3,collapse=",")
[1] "A 1,B 2,C 3"
> paste0(c("A","B","C"),1:3,",")
[1] "A1," "B2," "C3,"

paste函数也可用于生成字符串或字符串向量

> paste(1:10)
 [1] "1"  "2"  "3"  "4"  "5"  "6"  "7"  "8"  "9"  "10"
> paste(1:10,collapse = ",")
[1] "1,2,3,4,5,6,7,8,9,10"