这怎么可能，我怎样才能找出差异？
> a$a
[1] 7.849803 7.526553 7.639534 7.922609 8.004963 8.607438 7.610484 7.558173 7.718382 7.737507 7.398546 7.932555
[13] 7.473627 7.644294 7.519430 7.878465
> b$b
[1] 7.849803 7.526553 7.639534 7.922609 8.004963 8.607438 7.610484 7.558173 7.718382 7.737507 7.398546 7.932555
[13] 7.473627 7.644294 7.519430 7.878465
> a$a == b$b
[1] TRUE TRUE FALSE FALSE TRUE TRUE FALSE FALSE TRUE FALSE TRUE TRUE TRUE TRUE FALSE TRUE