string 连接字符串中的数值
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Concatenate numerical values in a string
提问by kahlo
I would like to store this output in a string:
我想将此输出存储在一个字符串中：
> x=1:5
> cat("hi",x)
hi 1 2 3 4 5
So I use paste, but I obtain this different result:
所以我使用paste，但我得到了不同的结果：
> paste("hi",x)
[1] "hi 1" "hi 2" "hi 3" "hi 4" "hi 5"
Any idea how to obtain the string:
任何想法如何获取字符串：
"hi 1 2 3 4 5"
Thank you very much!
非常感谢！
回答by Gavin Simpson
You can force coercion to character for xby concatenating the string "hi"on to x. Then just use paste()with the collapseargument. As in
您可以强制胁迫字符x通过连接字符串"hi"上x。然后只需paste()与collapse参数一起使用。如
x <- 1:5
paste(c("hi", x), collapse = " ")
> paste(c("hi", x), collapse = " ")
[1] "hi 1 2 3 4 5"
回答by mnel
You could use capture.outputwith cat
你可以capture.output和 cat 一起使用
capture.output(cat('hi',x))
[1] "hi 1 2 3 4 5"
回答by loretoparisi
You use sprintf:
你使用sprintf：
> x=1:5
> str=sprintf("hi %d",x)
> str
[1] "hi 1" "hi 2" "hi 3" "hi 4" "hi 5"
>
