如何返回 %in% 向量的观察结果？答案

【问题标题】：How to return observations which are %in% a vector?如何返回 %in% 向量的观察结果？
【发布时间】：2022-12-13 09:15:06
【问题描述】：

# My vector:
day <- c("day", "night")

Observation	Column #1	Column #2
1	Day	Evening
2	Evening	Morning
3	Night	Evening
4	Morning	Night
5	Morning	Morning
6	Night	Day

如何返回观察结果，其中列至少包含我的向量中的一个值？

Observation	Column #1	Column #2
1	Day	Morning
3	Night	Evening
4	Morning	Night
6	Night	Day

数据框

df = data.frame(
obs = c(1:6),
Column1 = c("Day","Evening","Night","Morning","Morning","Night"),
Column2 = c("Evening","Morning","Evening","Night","Morning","Day")
)

【问题讨论】：

标签： r vector data-manipulation

【解决方案1】：

library(dplyr)
df %>% 
   filter(if_any(starts_with("Column"),  ~ toupper(.x) %in% toupper(day)))

-输出

  obs Column1 Column2
1   1     Day Evening
2   3   Night Evening
3   4 Morning   Night
4   6   Night     Day

【讨论】：