在一个单元格中连接多个可分离(连接)值的R dataframe

unite(data, new_col, ..., sep = "_", remove = TRUE)

# 导入tidyr包
library(tidyr)

# 创建示例数据框
df <- data.frame(A = c("a", "b", "c"),
                 B = c("x", "y", "z"),
                 C = c("1", "2", "3"))

# 连接A、B、C列的值，并将结果存储在新列D中
df <- unite(df, D, A, B, C, sep = "-")

# 打印结果
print(df)

    D
1 a-x-1
2 b-y-2
3 c-z-3