R：有没有办法在两个数据帧列之间进行部分匹配的 Vlookup

Question

I have 2 dataframes (df1 & df2)

df 1:

df 2:

Required Output:

df3

Answer 1

Instead of the pictures, you should try to put the data in reproducible format. Also, try to show some work but I can understand that you may not know where to even begin. But at least show what you have attempted whether it works or not.

Will something like this work?

library(dplyr)
df1 <- data.frame(almId = c(12347, 123455, 112625, 112621), almname = c("1001 battery down", "2077 Power issue", "7166 DG fault", "2122 cable cut"))

df2 <- data.frame(almname = c("battery down", "Power issue", "DG fault", "Circuit break"))

k <- paste0(df2$almname, collapse = "|")
df1 %>% mutate(Stat = stringr::str_detect(.$almname, k))

df3 <- df1 %>% mutate(Stat = stringr::str_detect(.$almname, k))

   almId           almname  Stat
1  12347 1001 battery down  TRUE
2 123455 2077 Power issue  TRUE
3 112625 7166 DG fault  TRUE
4 112621 2122 cable cut FALSE