从一列中的观察中提取单词到 R 中的新列答案

【问题标题】：Extract words from observations in one column to new columns in R从一列中的观察中提取单词到 R 中的新列
【发布时间】：2022-08-16 22:46:37
【问题描述】：

下面是一个假设的数据框。

Category <- c(\"Male children 0-15 years\", \"Female children 0-15 years\", \"Male Youths 18 years\",  \"Female Youths 18 years\")
value <- c(12, 23, 33, 45)
DF <- data.frame(Category, value)

                   Category value
1   Male children 0-15 years    12
2 Female children 0-15 years    23
3       Male Youths 18 years    33
4     Female Youths 18 years    45

我想将Category 列中的观察分成两个，第一个单词和其余单词，这样我的最终数据框看起来像这样

                    Category gender value          new.column
1   Male children 0-15 years   Male    12 children 0-15 years
2 Female children 0-15 years Female    23 children 0-15 years
3       Male Youths 18 years   Male    33     Youths 18 years
4     Female Youths 18 years Female    45     Youths 18 years

标签： r gsub stringr

【解决方案1】：

使用tidyr::separate：

library(tidyverse)
DF %>% 
  separate(Category, into = c("gender", "new.column"), remove = FALSE, extra = "merge")

【讨论】：