string 逗号分隔的字符串以在 r 中列出
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comma separated string to list in r
提问by umbersar
I have a comma separated string in R:-
我在 R 中有一个逗号分隔的字符串：-
"a,b,c"
I want to convert it into a list which looks like this:
我想将其转换为如下所示的列表：
list("a","b","c")
How do I do that?
我怎么做？
回答by A5C1D2H2I1M1N2O1R2T1
This is a basic strsplitproblem:
这是一个基本strsplit问题：
x <- "a,b,c"
as.list(strsplit(x, ",")[[1]])
# [[1]]
# [1] "a"
#
# [[2]]
# [1] "b"
#
# [[3]]
# [1] "c"
strsplitcreates a listand the [[1]]selects the first list item (we only have one, in this case). The result at this point is just a regular character vector, but you want it in a list, so you can use as.listto get the form you want.
strsplit创建 alist并[[1]]选择第一个列表项（在这种情况下我们只有一个）。此时的结果只是一个常规字符向量，但您希望将其放入 a 中list，因此您可以使用它as.list来获得您想要的形式。
