Hi Jemma,
As you are using r base plots you can't overlay with a ggplot graphic.
I think, that maybe, this could work:
lines(traffic)
Hope it helps.
Greetings.
P.D.: I suggest you using reprex to make it easier to help.
Hi Jemma,
As you are using r base plots you can't overlay with a ggplot graphic.
I think, that maybe, this could work:
lines(traffic)
Hope it helps.
Greetings.
P.D.: I suggest you using reprex to make it easier to help.