我有两个数据集,big_table和small_table
big_table = structure(list(FXW = structure(c(7L, 8L, 3L, 7L, 7L,
1L, 6L, 1L, 3L, 2L, 6L, 5L, 3L, 3L, 7L, 5L, 2L, 3L, 2L, 6L, 5L,
1L, 6L, 2L, 4L, 8L, 3L, 1L, 7L, 5L, 3L, 2L, 2L, 2L, 1L, 2L, 1L,
5L, 4L, 1L, 4L, 6L, 3L, 3L, 5L, 3L, 8L, 3L, 8L, 1L, 2L, 1L, 8L,
1L, 6