r - 用矢量粘贴文本

Question

我正在尝试用矢量粘贴一些文本:

v1 <- c(16,17,18)
paste ("the numbers in v1 are:",v1) 

我想得到: v1 中的数字是:16、17、18但它得到:

[1] "the numbers in v1 are: 16" "the numbers in v1 are: 17"
[3] "the numbers in v1 are: 18"

对于我做错的地方，我将不胜感激。

Answer 1

你需要先折叠v1:

paste("the numbers in v1 are:", paste(v1, collapse = ","))
# [1] "the numbers in v1 are: 16,17,18"

您的代码将首先重复"the numbers in v1 are"直到它匹配v1的长度，然后它会按索引将向量的元素粘贴在一起.

或者

sprintf('the numbers in v1 are: %s', toString(v1))
# [1] "the numbers in v1 are: 16, 17, 18"