R：拆分数据框列中的字符串

Question

我有一个数据框，其中一列包含字符串。我想拆分那个字符串，用点分隔，并始终保留第一部分。

这将是我的数据框：

                                             State
1             This is my string. I do not want this
2   This is other string. I do not want this either

我想得到这个：

                   State
1      This is my string
2   This is other string

我试过这个，但现在可以用了：

df = df >%> dplyr::mutate(State= str_split(State,".")[1])

Answer 1

这个有用吗：

library(dplyr)
library(stringr)
df
                                            State
1           This is my string. I do not want this
2 This is other string. I do not want this either
df %>% mutate(State = str_remove(State, '\..*'))
                 State
1    This is my string
2 This is other string

R：拆分数据框列中的字符串

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