你需要这个吗？group_by加summarise和toString():
library(dplyr)
# your dataframe
Date <- c("30/05/2020", "30/05/2020", "30/05/2020",
"29/05/2020", "29/05/2020")
Text <- c("Here we are", "He likes ABC", "She likes DEF",
"Cat eats XYZ", "I have a pet")
df <- data.frame(Date, Text)
df %>%
group_by(Date) %>%
summarise(Text = toString(Text))
输出:
Date Text
<chr> <chr>
1 29/05/2020 Cat eats XYZ, I have a pet
2 30/05/2020 Here we are, He likes ABC, She likes DEF