我有一个大约 1000 个整数的列表。我需要能够进行一些数学计算，但它们被困在列表或字符形式中。我怎样才能切换它们以便它们可用？
样本数据：
> y [[1]]
[1] "7" "3" "1" "6" "7" "1" "7" "6" "5" "3" "1" "3" "3" "0" "6" "2" "4" "9"
[19] "1" "9" "2" "2" "5" "1" "1" "9" "6" "7" "4" "4" "2" "6" "5" "7" "4" "7"
[37] "4" "2" "3" "5" "5" "3" "4" "9" "1" "9" "4" "9" "3" "4" "9" "6" "9" "8"
[55] "3" "5" "2" "0" "3" "1" "2" "7" "7" "4" "5" "0" "6" "3" "2" "6" "2" "3"
[73] "9" "5" "7" "8" "3" "1" "8" "0" "1" "6" "9" "8" "4" "8" "0" "1" "8" "6" ...
只是前几行。
请参阅？取消列出：
> x
[[1]]
[1] "1"
[[2]]
[1] "2"
[[3]]
[1] "3"
> y <- as.numeric(unlist(x))
> y
[1] 1 2 3
如果这不能解决您的问题，请具体说明您想要做什么。
编辑 ：
显然更简单：
> x <- list(as.character(1:3))
> x
[[1]]
[1] "1" "2" "3"
> y <-as.numeric(x[[1]])
> y
[1] 1 2 3
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